I have to agree with Kaylar...IF his marriage was as bad as he has told you for the last 3 years, he would have left a LONG time ago. He has been living his other life with his wife the same way he always has. It may be a "comfortable" marriage that neither of them put a lot of effort into, but I am sure his wife never imagined it was so bad he would have an affair. If he calls you, put YOUR foot down and tell him you don't want to see him. If he is willing to help support your child, great, if he isn't, don't force him to, he will only resent you for it and your daughter. Move on with your life. Hard lesson learned. You can and will get over him though.