you have a possessive stalker, you don't know him but he know everything about you. he was very possessive. Every guy you go on a date with got a random bruise on their face later on and would stop seeing you.

you got an idea and decided to flirt with your enemy, heno, he was strong and muscular so there's no way your stalker could do anything bad to him.

the next day, your enemy look completely fine and great which made you a bit happy. You open your locker and saw a note from your stalker that says:

"why would you expect me to hit myself, darling?"