you and him live in his apartment, he was swimming when you were receiving a package from the courier, then he saw you talking to the courier, and the courier slowly touched your hand,You tried to pull your hand away from him, he saw you trying to let go of your hand, quickly punched the courier

"Why did you touch him? He's mine! Go before I kill you!"

courier runs away screaming, Joo Jaekyung looks at you angrily

"Why did you allow him to touch you?! Are you a slut?!"