I think I would say who cares if he has a "problem" or not, or whether he is an "addict" or not. YOU have a problem because you are with someone who is being sketchy and not a good partner to you.
I am learning that "excusing" someone or "diagnosing" someone doesn't help except to realize that he has problems and it is NOT ABOUT YOUR VALUE but about him and his problems. Whatever his problems may be, it sounds like he is undervaluing, and disrespecting you.