I have a friend going through something like this. His lawyer told him that he will be released from child support, but that since he has had a lot of contact with the kids the court won't make him stop seeing them. Too disruptive to the kids for him to be jerked away. He has not gone to court yet, so nothing is for sure.

How old is his son? I find it a little suspect that the boy has not spoken this to dad directly. My SD is the kind of kid who will tell each parent what she thinks they want to hear, even if it is not necessarily true. SHe is desparate to please everyone. This may be the case here. Also, if his son thinks he is old enough to make this kind of decision, he needs to be old enough to sit down and have a face to face conversation with his dad. That way he can see the pain his decision is causing. He needs to know how his actions affect others. THis conversation needs to be alone, with out mom present. This may be the only way your husband can feel like he gains the truth of the matter.

You are doing the right thing. Just keep supporting your husband the best you can.