"What would you do if someone found out your secret?"
Well, this guy decided to be your obedient little slave like a wimp instead of just killing you so he could be free, so maybe he was expecting this monster girl to be stupid like him.
I know a high school student like him will be hesitant to kill someone for the first item, but at least fight back! Like cmon man! Stop being a pussy and at least throw a couple!