The other thing I didn't realize when I married him, was that his father had affairs on his mother (not that this is a solid predictor of anything).
My FIL also cheated on my MIL on numerous women, but it was my MIL that filed for divorce when she found out that he fathered 2 children with current ow. I don't know if they got married or not, but I know that FIL is still with ow. Probably because both kinda figured that they are too lazy to find other fishes in the sea!!
BTW, I read a book (can't remember author's name) and the author said that parental affairs do in effect influence children to repeat the deed. I think some other online experts share that view too..