Java's abusive BF

Java is a girl, specifically, the girl. Java is one of the prettiest girls in school and she has the best grades and preformance in class, the only bad thing about her is her kindness. Java is too kind and she always gives second chances, which is why she doesn't do anything when her boyfriend smacks and abuses her under the bleachers. Java was trying to give a boy his glasses back when her Boyfriend, Lenn, comes along and thinks that she is cheating on him, so he drags her under the bleachers and gives a hard smack to her cheek, and you? You are standing there just watching, will you do something or be a D?