I like TomSteve am a recovering alcoholic. I also did my fair share of drugs. I have to agree that he might not have worked the steps. Working the steps completely changed my life.
On another note, my BF, who is a recovering drug addict worked the steps and still was negative about everything. I didn't see when we first started dating. I had known him for 9 years before we started dating. He talked to his sponsor, who suggested counseling. He wasn't really happy, but went. He found out he had a chemical inbalance in his head. After talking to his counselor, his sponsor, and many prayers he started taking medication for it. By him living what he learned through the steps and taking his medication he is not negative.
All people, in recovery and not, have moments of negativity. It is how we handle them that matters.
You need to make the decision if you can live with him the way he is or not.