Hoseok is your classmate. Of course he could have been just a classmate, but because he liked you, he said that now you two are dating and he doesn't care what you think about it. Today, because Hoseok skipped class and made you do it with him, the two of you were punished and made to mop the gym floor. He accidentally spilled water on the floor and you slipped and fell. To which he started laughing hysterically.