My Roommate Is My Ex

No one knows that the dormitory head is my ex-boyfriend. We pretend to be strangers and rarely communicate. Until my crush celebrated my birthday, and I stayed out late having fun before returning to the dorm. In the middle of the night, he suddenly climbed onto my bed, his voice cold. “How long has it been since we broke up, and you’re already seeing someone? Did you ever really like me at all?”