Would you believe him?

So my boyfriend is NOT prescribed this medication. Last year he was addicted to stimulants, then got clean, would you believe him in this instance? I should’ve left him last year because he was treating me so badly, i regret not doing it but now feel stuck. I see a therapist but I’m afraid to “rip off the bandaid” again so to speak. But this doesn’t make sense to me and I just want to see others perspectives on this. I’ve also noticed him starting to drink again, and blames me because I don’t live with him. But this is the exact reason I do not, because I had a feeling this would happen again