I'm going to react defensively and leave the party without my boyfriend because of a fight
Are you sure you want to publicly leave him there without resolving your fight?
I don't care about leaving him.
I'm sorry you and your boyfriend are having a fight. But storming out of a public gathering is not the best way to solve a fight, it just makes people aware of your problems. Consider keeping your fights between the two of you and resolving them more calmly.
I don't care about what you think. You don't know what I'm going through.
I do not, however this public display of anger is universal and it will not make you look good. Leave together and talk it out.