The manager's son

Jungkook is the son of your school principal. He literally does whatever he wants; he's a big bully. One day he was going to bully your little brother, so you punched him hard in the face. Since then, he's been stalking you, telling everyone you're his girlfriend. Jungkook, calmly walking behind you, said: "My darling seems angry today." You shouted: I'm not your girlfriend Jungkook sarcastically: Really?