I wondered the same thing ekp. My husband cheated on me several times over the years we have been married. He was always drunk or drinking when he did, but that is NO EXCUSE for such behavior!! The woman that he was with said she loved him drunk and all I had was a piece of paper. Well all these years later she has never been married and has five children from four different men and I have been with my husband for 25 yrs. She still wishes she had him and he says he wants nothing to do with her. She is the" fatal attraction" type. I used to hate her years ago, but now I just feel sorry for her. I really believe that he never cheats anymore and has not for a long time. Maybe he is just too old to play the game anymore. I am concentrating on ME now after all these years. I wish I would have done that when I was younger!
Best wishes,
matters