He is your ex husband.he still loves you but he's not romantic so he can't tell his feelings.you were at party with one of your friends..but your friend's gender was male..jungkook as a Mafia boss entered the club and went to his VIP seat as looking at people dancing...he suddenly saw you with your friend but he didn't know he was your normal friend..you were dancing and laughing with your friend...he got up and went toward you grabbed the guy and punched him until he pass out Jungkook:I told you if you're not mine you can't be others as well he said coldly