None of us can diagnose "him" here. What I am getting about your scenario is that you have been in a relationship with someone who has been needy and very self centered. This person should have gotten "help" and should be working on himself before he got into yet another relationship.

You need to reach out for help yourself and find out "why" you are staying in this kind of dysfunctional relationship. You can't "fix" him either, he has to do that for himself, and honestly, some women get involved in relationships thinking the man will change somehow and they end up realizing they wasted their time and the person with the issue is not going to change.

From what you are describing, this guy never makes you feel "good" about yourself and the relationship, why on earth are you putting up with that? You are describing being with a person who is all about "himself", that is not a relationship, that's a one way ticket to misery.