How to deal with a mean person?

[Lavigne Levine]

This makes me sad.
The best thing to do is to go talk to her personally and ask her that you really wanted her to come in the first place. She was indeed innocent about the Facebook thing so that will explain her behavior and I might forgive her for that.

It would be too bitchy for her not to forgive you after having your way for her to come, apologize, and ask her to come again when it's your birthday! It will haunt her conscience not to!

But, before you go to her, you have to tell your close friends first so that they would have your back in case she acts all "I will never ever forgive you" kind of thing.

Good luck and happy birthday!!