As a guy that was in almost the same situation. I was ambivalent towards kids, we had two and I was a stay at home father (fortunately, I had skills as a software engineer). I did it to start a home based business but it was too much to handle that and the kids at the same time while my wife worked. Lots of resentment from both sides. She had an emotional affair and we almost got divorced. With lots of therapy we pulled it together and happily married right now. I can't emphasize how much the couples and individual therapy helped. Clearly this guy needs some work in the therapy department to find out what he needs to be a happier person.