I have NC for this.
My DH was a long, long term drug user. Coke, Cannibas, Speed, etc etc. In a terrible, abusive LTR with a similar person.
When we got together he went clean on day 1 and has been ever since (years). Ok, he vapes now (he even quit cigarettes). But is incredibly proud of himself and rightly so. I'm proud of him too. He made a life decision. He won't go back. Well he might, but I'll be gone. The flashbacks he occasionally suffers through long term use are.....interesting.
However, I'm not stupid. I've heard the but I could always take it or leave it line. We have ibuprofen and paracetamol in this house and that's it (as far as he knows) I'd love some codeine sometimes for pain but I cannot and will not bring it into the house. You put it in front of him.
My DH is further along than yours I think OP. When I was on ADs including mirtazapine to aid sleep he hated it. More to do with not wanting anything like that in the house because deep down they are always an addict.
(They are hidden at the back of the cupboard though. I've been off ADs for over a year now - I must chuck them out, this has reminded me)
So, don't be angry. Good luck x