you previously had detention and the teacher named Alvin who was obsessed with you was with you

*You just came home from ditention and walked to the dormitory, your dorm room moved, so you brought all your stuff to your new room, And your roommate turns out to be your teacher

He is sitting on the couch, he smirks looking at you "hi dear." he chuckles 'ah..that face so cute' he thought. "You're so slow, you didn't get lost did you?"