He's way to obsessed with him. it's honestly so creepy to date someone that look like your frnd? "FRND",honestly surprised bc moon,and his frndsss didn't notice the similarities.. I don't see him having having affection for her too, whenever they're together he just smile, do what she said, that's it?? There's literally no romantic energy comings from it... He also pay more attention to moon than to his girlfriend.

The problem is this.
He is truly toxic and I truly believe he despises the idea of two men being together romantically and that’s why he has no problem having a girlfriend and treating the uke the way he does.
In my opinion he doesn’t see his behavior as a romantic one, but he thinks the uke is his possession in a personal form, definitely this is a psychological aspect that can be scary.
He doesn’t have romantic feelings (yet) but only the ones of profund possession AND obsession and that’s why he doesn’t want the uke to have a life outside him.
Basically he wants to keep his relationship with the girl yet at the same time have the uke by his side as some kinda pet he can always control and have for himself.
This is a scary behavior, totally mentally ill.
I hope the uke wakes up and I actually hope his hyung and roommate will help him realize how toxic this situationship is, he needs to get away from that guy…