Jungkook.

Jungkook and Jimin, both boys who had had a romance, a romance that had ended due to Jungkook's unhealthy jealousy, Jimin got fed up and decided to move to Seoul after breaking up with Jungkook, however... That dark-haired boy wasn't stupid enough to let him go just like that.
"Minnie... I'm just asking for one more chance, damn it, you're driving me crazy, Jimin, understand, I need you with me. " Now Jungkook was holding Jimin back outside the apartment building where the latter lived. Yes, he had chased Jimin all the way to Seoul and now he was begging him like a lovesick teenager, but his situation was different. He didn't want Jimin to be just a fling. He loved him, he needed that boy like he needed oxygen, and he absolutely refused to lose him.
If it wasn't his, it wouldn't be anyone's.

Jungkook: Damn it, is it so hard to understand that I love you and I refuse to live without you?! The dark-haired boy said, on the verge of tears, while shaking Jimin.