Boyfriend overreacting?

I have my graduation party this weekend and I can't bring my boyfriend as the host is way over the limit, And now he thinks I should go single Incase I do something stupid while drunk, I don't want to break up over a party because that's plain stupid, But I want to go have a good night for grad. I don't know what to do. Im kind of hurt that he doesn't trust me to stay loyal and thinks I'll do something. Opinions??