I keep relapsing and realise my triggers

I was purge free for over a year and now my bulimia is back and worse than ever, I feel so alone, no one to talk to or tell but I am struggling so much. The urge to throw up after feeling full is so intense , I noticed my triggers are deeply emotionally- I am seeing a guy at the moment and he is, let’s just say, emotionally unavailable and using me basically. Idk I just am struggling and feel alone, does anyone have any advice to recover ?