in the recess

everybody is just talking and chatting outside, when kuzon approach a girl and the girl give kuzon a comlipent when suddenly the bully burn kuzon book and kuzon yelled because the bully was angry or jealous because kuzon is trying to steal her girl when he is not doing anything, later on the bully tried to hit kuzon but he keeps dodging and avoid the fight, you watch the scene

"Calm down! We can have a talk about this!"

what should you do in this situation?