THIS MAN TSUN AS FUCK lol
Honestly and he's right to try and set boundaries. It would be worse if he led him on only to leave him hurt again if they break off.
He also might not want Ha Joyoon to see him as a rebound and a crutch. If you read/watch Given he probably doesn't want how Mafuyu and Ue's relationship currently is. As in Mafuyu processing his ex's while the deeper emotional bonding with Ue is at a standstill 40 chapters in.
Uenoyama will always be second rate in everyone's eyes lmao. Even the author makes it seem so in the way they describe Yuki/Mafyuy/Ue through the other characters. Very sad for him no matter what he does he won't live up to Yuki.
Ue and mafuyu are just starting to build their relationship, ofcourse for others, yuki and mafuyu will still remain. The perfect picture of a loving relationship. They would need time to move on from yuki and mafu's relationship and get used to mafu's rltnship with ue.
But mafuyu already moved on and he really loves ue. It's just, right now he's scared ue's drifting and history might repeat with ue
Jaemin should say something he looks a little cowardly not standing up here
Just read the raws SPOILERS
FUCK HIM UP JAEMIN YESSS
Raw link??