I take it you don't know any children of divorced parents, then. They tend to have rather strong feelings about how wonderful of an experience it is, particularly if the divorce involved one of their parents cheating.

I'm not trying to be morally patronizing, nor am I unhappy with any of my own relationships, all I am saying is that this guy is not the squeaky-clean saint he's being put forward as, and that his motives are questionable. Do I know for a fact that he did this for himself rather than for her? No. But I do know that he's said things that don't match his actions, and those things make him a prick in my book.