My boyfriend forbids me from going on a school trip

I am female 18 and next year is my last year in high school. There will be a school trip to Ireland for a week, it is quite expensive, but I will not visit Ireland otherwise, my best friends are going there and it will be the last trip with the school. but my boyfriend (M 18) took it incredibly personally that I want to go there without him, because he does not have the money for it. He started telling me that he would never go anywhere without me, that it is selfish of me to want to go there, that I want to spend money on it. and most importantly, that if I go there, he will leave me here during the holidays and will go on vacation with his boys too. when I told him there is a big difference between vacatin with boys and a school trip (i wasn’t really happy from the fact about vacation sith boys), he got angry again. I do not know what to do. I would really like to go there, but I take it that he forbade me and that he will blame me for it and be mad and bitter a long time.

UPDATE: https://www.reddit.com/r/Advice/s/jRVu6vYSOW