please read I’m in a bad situation :(

I have an eating disorder and it’s hard for me to open up to people but I’ve had a boyfriend of six months and I told him and he was very supportive but yesterday he may be promise I wouldn’t throw up but today I had a moment when I didn’t think straight and I got into my head and broke the promise. I told him because I was distraught but he wrote a long message how he was so annoyed I broke the promise and after my exams are over (at the end of the week) he said is going to make me choose him or the eating disorder but I’m not sure maybe he wants the best but it just seemed like he was making it about him and how I’m negatively impacting him and that he doesn’t want to see his girlfriend like this because it makes him upset.

all I want him to say is like ‘why did you do it’ or ‘what were you feeling’ or idk something that makes me want to stop because to be honest when he said that, I threw up again because I was stressed and the tension was getting too much for me.

Someone please comment how I should deal with this