I guess I can understand that "The Bitchy Girl" would be upset that "The Bully" didn't want to play the clothes game with her.
But, I got the impression that she really didn't care what the group thought of her so that this would offend her amazes me. Of course, a lot of people who say they don't care what other people think of them are lying.
What I really don't understand about the fight is that it escalated so quickly. She said that she had her anger management issues under control. I guess not.