I've been catching up on your situation. You know, sometimes there is not a lot you can do. Her staying in her room during the party is downright childish if you ask me. I can't believe she thinks it's a reflection on you instead of herself.
Just my .02 cents worth, but I would have totally ignored her pouting and had a good time with my invited guest. I'm sorry, but she sounds like a drama queen.
"It is curious that physical courage should be so common in the world and moral courage so rare." -Mark Twain
