bpd in my relationship

me and my boyfriend have been together 7 months and it’s been great for the most part however i have bpd and it seems to be affecting us a lot it makes me very controlling and protective in the relationship and belive me i’d rather it not be this way i feel uncomfortable when he goes out drinking with his friends without me and it really messes up my mental state although i wish i could be fine with him spending time with his friends he’s very understanding on how i feel and will stay home with me if i’m feeling stressed about him going out but i wnat this to change i want him to be able to spend time with his friends without me feeling like the world is ending if anyone has any advice i’d really appreciate this