My husband had been having an affair for over a year before I found out (10 days before xmas 2 yrs ago, xmas has not been right for me since). He only left me after I asked him to go twice, and cos it became too much for me. I asked him what would have happened if I had not been told and he said that he would have finished with her and I would never have known.
Since then he has said several times that he wanted to finish with her but she would not leave him alone, he said that she is too clingy for him and they argue alot. She buys him clothes, paid for him to go on two holidays etc. He wont move in with her nor does he want a devorce.
He will never stay faithful to her, he has even been seeing me (if you know what I mean) without her knowledge. I put an end to that, he can't have both and I won't share, everyone thinks that he is mad staying with her, but no-one will say anything to him, its thought that someone is better than no-one. We had been together for over 20 years, three daughters together and a lovely home, we had a good marriage until she came along - he lost everything.
He changed alot since he met her (for the worse) everyone noticed, but it was a while before people knew why.
There is no such thing as a 'sucess story' as many people get hurt for the sake of sex with another, especially children, it has long lasting consequences on them. The closest thing to a sucess story would be if the wonderer makes good his marriage/partnership.