I have been seeing this guy for 2 years now and we recently found out that his child's mom has been using his identity to get things. I voiced my concerns about that, we are engaged and will be married later this year. I made it clear that she needs to pay for whatever she got in his name,and my fiancé' gave me an attitude about voicing my concerns. It's only when this particular child's mom comes up that we hit a bump in the road. I believe he is so defensive when it comes to her because there are still feelings within. What should I do?