Boyfriend doesn't feel anything...

So our LO is a month and a half and my boyfriend just confessed to me that he doesn't feel anything when he holds our son. He wasn't around for the pregnancy or birth. His mom thinks it is because he wasn't around for the earlier stage. I think it is normal for the first couple months because babies are not really able to do all the fun stuff guys probably want them to do, being that men can be more hands on... I don't know... I just feel bad because he is really struggling with his feelings... can anyone relate?