I don't know what to do anymore about him?

My (ex) boyfriend and I have been together for 11 months, some days were amazing while others were nothing short of hell. During those 11 months we battled his addiction to heroin, with a few relapses he's finally reached 2 months sober. However, during his 'using' days there was a lot of trust destroyed, betrayal, and simply mean-ness. When he's not using he's the best person there is, yet he (like the rest of us has flaws). He doesn't work a program nor does he have a job, so he does nothing all day. I work, go to school, and have been sober for almost 2 years coming this summer. I love him a lot, and I don't want to leave him and he tumbles down...yet how much more can I take? The trust is a very hard issue with me, since there have been so many lies because of his using I'm terrified almost everyday I'm going to get hurt like I have been in the past. But I don't know how to get past the hurt when I don't see some more actions taken on his side. This past weekend I told him I didn't like this guy he was hanging around because I find him to be bad news, (I see him as one who's going to bring him back down to using...). SO now he's ignoring me and won't talk to me. I told him I can't go on in a relationship like this if he can't talk to me because I'm expressing my thoughts and feelings of fear. Whenever I seem to talk about some of my issues with our relationships he turns it all around on me, and it seems to be solely about him and his feelings. I love him a lot, and I've done everything possible to be there for him and help him...but I know I deserve better, but why does it hurt so bad not having him?! I'm really struggling with the thought of moving on without him.