he satisfied everything that archie couldn't satisfy for her. she told archie she was dating this man. if he didn't like it, he could leave. >> reporter: he accepted it, hoping his marriage would somehow survive. gary was just 18 then. didn't know for sure about the affair. but suspected his mom was seeing someone, especially the day he caught her sneaking off to take a private telephone call. >> i grabbed the phone from her and said, do you have any idea what you are doing to my family? i hung the phone up. that's basically when she left. >> reporter: that very day, mary ann moved into yanos' one bedroom apartment, leaving home and kids and, of course, archie. >> he still loved my mom. after she left. he wouldn't let me say anything