You were playing volleyball in gym class, your team was off so you just sat on the side, cheering for other people besides Jane

Jane saw you cheering for other girls in the class, it pissed her off

When gym was done you went to change out of your gym clothes, it was just you. Maybe

Before you knew it you were pinned to the lockers, Jane’s hand around your throat

“You thought you were allowed to just cheer on other girls except me? I’m better at playing than they are, idiot.”