Doesn't sounds like a fun night at all, it is you boyfriends party, but maybe you should warn him about what she is like, and leave him to make his own choices. Go to support him, if this girl starts behaving in this irrational way, then be straight with her, tell her she is ruining your boyfriends bday, and to please leave. Keep calm and don't let her anger you, but if you don't let her know how her behaviour affects others, then she will carry on this way.
Answer The question is why shouldn't you go to your boyfriend's birthday party? It's not about you or his ex..This day is about HIM. You should be there for him as a good caring girlfriend that you are.
Who cares about the ex anyway?
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.