it's really so scary to stand on this ledge and to just jump off of it. >> as leslie recovers from the excitement, austin is seconds away from putting his plan into action, from the top of the arch austin begins lowering himself down to meet her. >> i got closer and closer until she looked up at me. i thought, surely she knows. surely she's expecting. >> but leslie thinks austin is on his way down to offer help, and she's not amused. >> when he was coming down i was sort of annoyed. okay, yeah, i freaked out at the top, but it's fine, i don't need your help. >> irritation is not the emotion austin is hoping for. >> i had the ring in one pocket in case she said yes. and i had some tissues and a fifth of vodka in the other pocket in case she said no. i'm kidding. i'm mormon. i don't drink. it was dr. pepper.