my boyfriends coke addiction and OF addiction has ruined my trust in him

me (22f) and my boyfriend (22m) have been together for about a year now, at the start even before we got together i had set boundaries about how hard drugs is a deal breaker and how i think watching porn while you’re in a relationship is disrespectful (now i know that that’s not for everyone but it’s my relationship and my own boundaries) he said he understood and that he only smoked weed occasionally which he explained to me was not often and that he agreed on the porn thing so from then on we started dating and as time progressed i noticed he smoked more and more weed until it became everyday and i had a conversation with him about how i mentioned it was a deal breaker and he said he understood and that he would stop, and he did which i was so proud of him for, but then i noticed after a month or 2 of being sober that he would always be tired and sleep constantly even tho he would tell me he was going to bed early and he starts work around 10:30 which in my eyes is quite a long time to sleep but then as soon as he finished work he would just fall asleep until the next day in my head i just thought he was depressed and was struggling mentally so i suggested therapy and it took a little convincing but he did and then i noticed he would stop taking me out as much and would ask me for money because in his words “he had a lot of bills to pay” which makes no sense because he lives with his mom and doesn’t pay rent whereas i live alone and make even less than half of what he makes and i still have enough to sustain me, so it just made me confused and i had asked him multiple times what was going on i tried to speak to him and tell him im there for him if he needs to talk and that i will never judge him but he said he was fine and just didn’t like his job and wanted to find a new job but because he didn’t graduate highschool he wasn’t able to find smth better so no matter how many times i asked and how many opportunities i gave him to be open and honest he just said he was tired of his job, now here’s where things get fucked up, one night we were at my house cuddling and he was gonna sleep over we were watching tik toks on his phone and a gmail notification popped up and it read “only fans payment for ‘asian baddie’ declined” my heart dropped, immediately and argument started because porn wasn’t okay for me but paying and subscribing to specific girls to watch their content is just even worse we had a huge argument i tried to see his phone he wouldn’t give it to me saying he’s too ashamed and i sat him down and asked him why, then he proceeded to tell me he was a coke addict and only ever jacked off to only fans when he was high off of coke, no that made sense because a couple months earlier he was out drunk with me and my friends and was texting someone which i saw he owed money to, when i asked him he said it was a drug dealer who he owed money to 6 months ago for weed which i was like oh okay yeah makes sense but it was actually because he was a coke addict, he would tell me he would go to sleep but he would stay up all night doing coke and jacking off to only fans girls and then he wouldn’t even sleep he’d just go straight to work and come home and sleep (we don’t live together and we only sleep over on the weekends) i feel so gross and i can’t get over this, he’s been sober for a month now and im proud of him and my main priority was getting him clean but now it’s hitting me and my heart is broken and i have no trust in him at all,

he’s only had a tendency of getting black out drunk on nights out and letting his phone die and i have no way of contacting him this is before i found out about the coke. he’s never cheated on me physically with anyone or even through text but the fact that i never saw what he was doing on only fans kills me because it wasn’t jsut subscriptions it was hundreds and hundreds of euros per month, the day before and the day after my birthday he spent 280 euros in total on only fans content after taking me out for dinner and complaining how he didn’t have enough money for the rest of the month because he spent it all on my bday plus he owed the drug dealer 400 euros for coke, i told his mom and she payed it all off for him and we are getting him help but he still refuses to talk to his therapist about it because he’s too ashamed and now he’s on holiday with his mom and sister (his dad was never in the picture) having the time of his life while i’m stuck cat sitting for his mom in his house and my mind is constantly mad at him but trying to understand because i love him, im moving countries for a year to study my masters and i made that decision way before i found any of this out and now im just worried it wont work out bc i wont be there to make sure he doesn’t use.

any advice on what to do? am i overreacting? the trust is completely gone and i feel crazy