His name is Aaron, he is very cold, he doesn't show emotion to anyone, but he is very possessive of you

at school, you tried to make Aaron angry and let out his emotions, but you failed, and during recess you met Aaron and you tried to startle Aaron from behind,when you're behind Aaron, suddenly Aaron spoke without looking at you

Aaron: "You don't need to startle me, I already know you're behind me." He said coldly