Found out some hard news

So my daughters father and I have been friends for about 8 years, but only together for almost a year and I am 4 months along. Previous to getting pregnant my boyfriend and I both got pretty heavily into the drug scene, luckily I got sick of it about a month before I got pregnant so she wasn't affected. When we found out I told my boyfriend he also needed to stop, and he better not be spending money or wasting time doing drugs instead of taking care of things that need done before she's born. Last week I get home from work to see someone had broken into my room, destroyed my daughters clothes I had already bought, stole 400$, and scared the shit out of me because I just felt unsafe in my home. As the night goes on o figure out one of my roommates is the one that destroyed everything and stole from me...for drugs that he was doing with my boyfriend and the other roommates. I had told all of them there was to be no drugs in my house before they moved in, and to tell me if they knew my boyfriend was doing it. All of them have been lying to me for months, I got my space and privacy invaded, plus have to deal with the fact that I told my boyfriend if I found out this sort of thing was happening that I would leave and he still did it anyway. I moved out immediately, but now I'm worried if I don't help him get clean, my daughter will grow up without a father which is the last thing I want. Everyone is telling me I'm stupid for trying to help him, and in a way I feel that way because I'm so pissed off and hurt, but I have to do what's best for my baby. We are not together right now, but I want my family together if I can gain trust back for him. Would you try to work it out in this situation or make him fix it alone?