Tinders inhouse sociologist telling us how to find that perfect match. And cabin pressure. The sky is becoming not so friendly. A mom battling a Flight Attendant over a stroller. The latest scuffle caught on camera. Will this ever stop . But first, the nightline 5. Number 1 in just good evening. Thanks for joining us. Tonight, shes fought back from adversity repeatedly to become a champion. But watching twotime olympic medalist Nancy Kerrigan, youd never know just how many hardships shes had to endure, including the most infamous one broadcast all over the world. Kerrigan is now a contender on dancing with the stars. Her shoes no longer have blades on them, but shes still turning heads with her electric comebacks. She was americas sweetheart on ice, dazzling audiences at the 1994 Winter Olympics. Shes back on track. Triple toe, triple toe combination. Reporter and elegantly sailing across the rink. Free your mind and the rest will follow now 47yearold figure skating legend Nancy Kerrigan trading in the ice rink for the ballroom. Hoping to go from medals to a mirrorball trophy on dancing with the stars. Why do this . Why dust off your sequins and get in the game . Dancing with the stars . Yeah. Because its fun to do something new, having a new challenge. I thought it would be really exciting. Reporter its been more than two decades since kerrigan won bronze in 92. Nancy kerrigan, United States of america. Silver in 94. But its that same olympic grit that his her going for gold on dancing with the stars. Do you feel like your competitive juices are flowing again . Oh, yeah. I mean, i dont know if ive ever stopped. Reporter ever the fierce competitor, what the audience cant see is how shes suffering from back pain. Just before the show, four doctors told her she needed surgery. It was pain for months, like massive pain. One step, two. Reporter she says nerve damage caused her right arm to atrophy. We got to the point where we had a lunch break and we went for a sushi and she couldnt lift a bottle of the soy sauce, and i was like, that could be an issue. That could be a problem. One, two, three reporter now, like so many times before, nancy says shes playing through the pain. A lot of people would be like, im getting surgery. Yeah, no. Scary. Why would i go through surgery on my spine . So scary. But youve performed at high levels in pain. Yeah. I mean, athletes do that all the time. Reporter perhaps no greater example of triumph over adversity, her silver medal performance in the 1994 lillehammer games. Just weeks before that moment she was embroiled in one of the biggest scandals in sports history, involving her olympic teammate and longtime rival, Tonya Harding. Nancy kerrigan, the american figure skater who is widely considered the favorite to win a Winter Olympics gold medal, was attacked at a practice session for the u. S. Figure skating championships. Reporter kerrigan was clubbed on the right knee with a baton by an unidentified man. Why . Reporter the whack heard round the world, as it came to be known. So you said why . I think its a reasonable question, frankly. Like people made such a big deal and almost like complaining, like why would i say that . But i think its a reasonable question. Reporter when you look back at it now, what do you see . Its sad. Because i mean, its almost like somebody else at this point. Do you want to say anything to us this morning . You know, i we cant talk about the specifics. Reporter in a soap operalike twist, it was Tonya Hardings exhusband Jeff Gillooly who hired the hitman hoping to stop kerrigan from making the olympic team. But kerrigan quickly recovered and went on to skate the performance of a lifetime at the 94 olympics. Harding did not medal. What did you say to people who thought, well, youre only famous because of the notoriety of the attack . I dont know that anyone says that. Because i have two olympic medals. Like they didnt just give them to me. I mean, i worked hard for it. Reporter Tonya Harding always denied any involvement in the attack. But she was fined 100,000 and banned for life from competitive skating. In 2009 oprah asked harding about her former rival. What would you want to say to her about all of this . Well, if shed let me, id love to give her a hug. And just, you know, tell her how proud i am of her being able to, you know, go forward with her life. How would you respond to that . I have no idea. I dont know. I mean, how do you know how youd respond . You never know. Do you feel like there has been an apology . Do you feel like there was, i dont know we talked. We were at an event four years after i was attacked. But we didnt really speak to each other. So it was very awkward and strange. So you dont feel like you ever got an apology . Not a direct does it matter at this point . At some point even strangers were telling me you look so thin. Reporter kerrigans focus instead is on her upcoming film documenting the stories of athletes battling eating disorders, something that resonates with kerrigan. Ive never seen a doctor. Ive never been diagnosed. And yet you did struggle with food issues for a while. After being attacked, i was being followed around by camera crews and everybody wherever i went, to the training, to the pool. I guess something i didnt Pay Attention to a lot for a while, that i was not eating and training. Reporter just before the 94 games kerrigan says she inadvertently dropped 15 pounds as a storm of media followed her after the attack. My world was completely out of control. It was crazy. So at the time i do feel like that was something i could control but the problem with eating disorders i think it starts to really control you. And it became difficult for me to eat more. It was actually hard and almost like intimidating i think. Reporter kerrigan says she had to push herself to eat so she could be healthy enough to compete. Olympic hardships werent her only struggle. Her road to motherhood was paved with heartbreak. After son matthew was born in 1996 kerrigan and husband jerry solomon tried for more children. But kerrigan suffered six miscarriages over eight years. I dont know why, and doctors had no explanation for me. And yet you like a lot of women blamed yourself. Yeah. Because something clearly was wrong with me, it felt like. Its my body that couldnt maintain the pregnancies. So what was i doing . Whats wrong with me . Or what did i do years ago . Or in my life to deserve that. Reporter solomon says those miscarriages were agonizing. What was it like as a husband, though, to watch her go from miscarriage to miscarriage to miscarriage . Its brutal. Other than to try and be there and be a sounding board, a shoulder to cry on or whatever, theres really nothing you can do. Reporter its something she opened up on dancing with the stars. I mean, this like almost felt shameful i think because i couldnt do it on my own. Reporter kerrigan and her husband, who also is her manager, eventually turned to fertility treatments. Their son brian was born in 2005. Daughter nicole came three years later. She deals with adversity really, really well. And has a way of dealing with that, internalizing it so that she becomes stronger when she needs to become stronger. Reporter kerrigan now sees her tenacity in her own kids. Daughter nicole and son brian are both fiercely competitive gymnasts. Tuck tight. Do you need me . Reporter theyve shown interest in the family business. For most kids when they say mom, i want to go to the olympics, youre like oh, no. I mean, but they also have a little distorted view, i think. Like my mom did it, how hard can it be . Moms done it, she did it twice. Reporter and its that strength and persistence that may very well transform americas princess on the ice into one on the ballroom as well. Up next, tinder turning five years old. Why the dating app claims its actually the best place to find true love. And later, more Turbulent Times for the airlines. Another confrontation caught on camera. And it was all over a baby stroller. Ive sensitivities, some foods leave your stomach in knots. groan . With bloating, discomfort, cramps, and gas. sigh try pronourish drink, a unique nutritional drink thats high in protein and fiber. And pronourish has no gluten or high fructose corn syrup, and its low in fodmap ingredients that may trigger digestive sensitivities. Its your delicious anytime, anywhere minimeal or snack. Pronourish. Nutrition you can feel good about. Pronourish. Better than a manual, and my hygienist says it does. But. Theyre not all the same. Turns out, theyre really. Different. Who knew . I had no idea. So, she said look for. One thats shaped like a dental tool with a round. Brush head. Go pro with oralb. Oralbs rounded brush head surrounds each tooth to. Gently remove more plaque and. Oralb crossaction is clinically proven to. Remove more plaque than sonicare diamondclean. My mouth feels so clean. Ill only use an oralb the 1 brand used by dentists worldwide. Oralb. Brush like a pro. A farmers market. Ieve whats in this kiester. A fire truck. Even a marching band. And if i can get comfortable talking about this kiester, then you can get comfortable using preparation h. For any sort of discomfort in yours. Preparation h. Get comfortable with it. And let roomba help with your everyday messes. A full suite of sensors automatically guides roomba throughout your home. Cleaning under furniture, along edges, and in corners. And roombas patented 3stage cleaning system agitates, brushes and suctions dirt from your floors for up to 2 hours, recharging itself when it needs to. Which means your floors are always clean. You and roomba, from irobot. Better. Together. At red lobsters lobsterfestime. Any of these 9 lobster dishes could be yours. So dont resist delicious new lobster mix and match or lobsterfest surf and turf because you wont have this chance for long. You know, the rules of tinder are simple. Swipe right if you like smrngs left if you dont. The site claims its a lot more complicated than that. And now the app says its evolving beyond that simple swipe to help users find true love. Heres abcs nick watt. Definitely takes a lot for me to step out of my comfort zone. But youre not going to get anywhere in life by sitting back and waiting for things to happen. Reporter charlottes looking for life, about to meet a tinder match. You know the famous slash infamous hookup swipe right if you like app. Heres the dude. I hope im not revealing any sort of guy code here, but i think the general male approach to tinder is swipe right continuously because youre not going to get a lot of matches in return. How are you . Good to see you. Reporter in an increasingly crowded marketplace, tinder is trying to stay ahead of the game by making more top quality matches. Its all about innovating. Theres 600 million single people on smartphones. Tinder by far is the leader in the market 37. Reporter marking five years in the game, tinder just conducted a survey. They say 80 of tinder users are actually looking for a longterm relationship. Instant reaction is oh, thats just for hooking up, thats just for people after a little bit of slap and tickle on a friday night. Oh, my god. Are you weve created over 20 billion connections since we started the app. Connections that have resulted in friendships, marriages, dates. Our data tells you that youre wrong, nick. Okay. Reporter dr. Jess carbino is tinders inhouse sociologist and shes listening in on charlottes date. Lets see what happens. Grew up in wisconsin. Never been filip. Its just like montana but without the mountains and the reasons to visit. Reporter banter. Theyre bringing up their backgrounds. Which is always really important. Reporter dr. Jess conducted a survey. Remember, it is theirs, not ours. We cant vouch for it or its results. Online daters are 26 more likely to have had a serious longterm relationship than their offline counterparts. Reporter and they say 82 of men on tinder believe fidelity is important. Offline daters apparently 71 . If you had discovered that tinder users have zero interest in commitment, youd have kept all of that to yourself . I think as a social scientist i have a responsibility to the public to talk about data in a way thats meaningful and very accurate. Reporter survey says 70 of online daters always use protection. Offline, 63 . All these myths that we have about modern dating are really hooey. Tinder right now is probably the easiest way in the world to meet someone new. But now we want to make its easiest place in the world to actually get to know that person. Reporter based on feedback, the app is adding bigger buyers, links to social media, and beyond the photo they say education and age are what users care about most. Other dating apps like hinge or ditch the swipe altogether to distance themselves from the frivolous hookup thing. We really agreed that swipe culture, hookup culture, swiping apps in general had really changed dating for the worse. Reporter hinge markets itself as highend and now charges a fee. Its people who are actually invested in meeting people as opposed to, again, like the hookup culture just swiping like oh, shes got, im going to go out with her. Reporter tinder is sticking with the swipe. Because it actually mirrors how we think. Its nur lojically and biologically sbased. Zplz that frightening. If you dont wear a hat you diminish your chances of being swiped right. It hinders your eye. Glasses are going to hinder your chances of being swiped right by 15 . And smile. You signal that youre approachable and you increase your likelihood of being swiped by 14 . Reporter remember, charlottes on that date. Whats with the phrase virginia is for lovers . You know, youre really putting me on the spot with that one. Shes blushing. Shes turning away. And while i often would not recommend turning away on a date, her turning away is signaling that shes a little nervous, a little embarrassed but having a wonderful time. Reporter earlier dr. Jess appraised charlottes profile. Not bad. Facing forward is also incredibly critical. Reporter thats a disaster. There is a guy with his hand around your shoulder. Most men dont want to think about your old boyfriend when trying to become your new boyfriend. Must love dogs. Reporter bio needed work. Charlotte, you are an interesting, intelligent, charismatic individual who has a really wonderful story to tell. Youre not telling people who you are and what youre about and creating such a Good Opportunity to connect with somebody at a deeper level. The smarter tinder gets the bigger it gets, the larger audiences, the better we get at suggesting the one or two or three people that we think are perfect for you. Reporter tinder started out as a few guys on a couch in a conference room. Now its 200plus people in a whole building here on sunset boulevard. So what will tinder look like in another five years . You may be walking down the street, siri or the tinder assistant speaks in your ear and says shawn, you know, theres a girl down the street that we think you might be interested in, youre both free tomorrow night, do you want me to set up a date . Reporter meantime, back to charlotte. Well, cheers to that. Absolutely. Thats a start. Cheers. You said you like the outdoors. Yeah, i like the outdoors. But i havent seen it since i moved here. Reporter dr. Jess is break cover. Im dr. Jess from tinder. Hi, dr. Jess. Good to meet you. Hey, charlotte. Good to see you guys. You guys are doing such a good job. I love watching you guys have this witty rapport and banter between the two of you. You guys have been doing a good job connecting about the things you talked about earlier in your bios and really getting to know each other. Im glad you think so. I was worried. Tinder is seeking a perfect match. But thats really as far as any app can go. What happens after that is still the same thing that shakespeares been talking about. Reporter charlotte and sunny. I think it went well. I never felt like was trying to find something to say. It felt super comfortable actually. I would love to go on a second date. I think there could be a second date. We had a good chat. Reporter starcrossed or not. There isnt an algorithm for that. Not yet. Im nick watt for nightline in los angeles. Up next, another ugly confrontation on an airplane caught on camera. Can the Airlines Make the skies friendly again . The birds and the bees by dean martin let me tell you bout the birds the bees and the flowers and the trees and the moon up above and a thing called love. Let me tell you bout the stars in the sk , a girl and a guy and the way they could kiss on a night like this lifes as big as you make it. Introducing the allnew seven seater volkswagen atlas and a thing called love. Hi, im frank. I take movantik for oic, opioidinduced constipation. Had a bad back injury, my doctor prescribed opioids which helped with the chronic pain, but backed me up bigtime. Tried prunes, laxatives, still constipated. Had to talk to my doctor. She said, how long you been holding this in . laughs that was my movantik moment. My doctor told me that movantik is specifically designed for oic and can help you go more often. Dont take movantik if you have a bowel blockage or a history of them. Movantik may cause serious side effects, including symptoms of opioid withdrawal, severe stomach pain and or diarrhea, and tears in the stomach or intestine. Tell your doctor about any side effects and about medicines you take. Movantik may interact with them causing side effects. Why hold it in . Have your movantik moment. Talk to your doctor about opioidinduced constipation. If you cant afford your medication, astrazeneca may be able to help. Yes, the fuel is complimentary for up to three years. Yes, it has an epaestimated range of 312 miles. Yes, you will probably have to answer lots of silly questions from strangers. Yes, this is a mindblowing marvel of technology. And, yes, you can buy it today because the future doesnt start next week, next month or next year. The future starts now. In the hydrogenfueled toyota mirai. And finally tonight, its happened again. Yet another hairied Airline Passenger in a faceoff on board an airplane. Nbcs linsey davis on the fallout. Just give me back my stroller, please. Reporter its no secret 2017 has already been quite turbulent for airlines. This mother clashed with an American AirlinesFlight Attendant over a doublewide stroller that was supposed to be checked at the gate. Was very upset and grabbed it and just pulled it, yanked it off, sort of violently yanked it. Reporter another passenger on board stepped in. Hey, bud . Hey, bud. If you do that to me, and ill knock you flat. You stay out of this. Reporter American Airlines removed that crew member from duty and immediately apologized, putting the mother in first class on another flight with a 1,000 voucher and a full refund. They understood maybe from the united mishap, they said the right thing. Reporter that passenger has since hired attorney domestic demet demetrio. The same lawyer representing dr. David dao, who was dragged off that United Airlines flight. Ive got 400 emails from passengers, mostly the big airlines, people telling me theyre being mistreated. Reporter the Flight Attendant remains on paid leave while the incident is being investigated. For nightline im linsey davis. Fasten your seat belts. Thanks for watching abc news. And as always, were online at abcnews. Com and our Nightline Facebook page. Good night, america. Abc news. Honored. Winner for the Third Straight year with the edward r. Murrow award for overall excellence in television and radio. Th