Is OTHER wrong in the post ? POST : On the last day of school last year I was hanging out with a group of friends I don't usually hang out with since my usual group of friends was away. 
There's one girl in the group who gets on my nerves lots because she does some really annoying things. 
In the afternoon that day I was chucking my bag around with friends when the girl decides to sit on my bag so I can't pick it up.
After repeatedly ask her to get off my bag she wouldn't budge.
She then called me a pervert for trying to get her off my bag.
When it got to a point where i had got the bag out from under her but she was still holding it so it was like a game of tug o' war. While I was stumbling backwards still holding the bag I accidentally stepped on her umbrella (which was left on the ground far away from our belongings) causing it to break.
I had no Idea the umbrella was there and the whole group called me an asshole and that I should buy her another one.
Later she started crying and said she just wanted to Josh around and be physical like all the boys in the group do even though she couldn't deal with if something went wrong.
So what your guys thought on the situation. Am I the asshole?