
Because he's only ever thinking about himself and not putting himself in jihos shoes at all for someone that claimed to love him, like boohoo pity me the one I loved disappeared oh he's evil oh he's the worst
jiho was just as much of a teenager, and on top of that from an abusive powerful family that could control hsi entire life, that were shit to the point he didn't know what being loved and cared for was like to be a normal person in his interactions with others and didn't have any genuine connections, he knows he was the first person to teach him all that, he saw all that and didn't think maybe something happened to him he didn't leave willingly? That his life is controlled etc?, and they were THAT close at that point and yet it took him no time to choose to assume the worst of him and hate him after his disappearance
It's not about him saying he doesn't want anything new again, it's about him being an ass to jiho when he doesn't deserve that

Dude be so fr rn, jiho treated him like shit and told him nothing about his family life or trauma at all. Trauma is not a free pass to be a pos. Yujuns acting like a normal human being with self respect, he's doing nothing wrong. Besides what you said is literally not true, it's mentioned multiple times that he was clinging to the hope that jiho had to leave but gave up in the end.

Yujin doesn’t owe jiho anything. They were partners, not servant and his boss. They are on equal ground. And yet, Jiho treated yujin as if he was less. He treated him like an idiot, like he was clingy, and annoying. Then he abandoned him. In yujin eyes, he doubts if jiho ever loved him, which I can’t blame him. He doesn’t read jiho’s thoughts like us so he can only base his opinions on how jiho treats him, which isn’t good if you ask me. Yujin simply learned to love himself and prioritize his needs over someone else. He wasn’t even cruel to jiho, simply fed him and wished him well. He is mature for moving on from his one sided resentment.
And why does yujin always have to be the one to apologize? He never did anything wrong. He doesn’t know anything. All he knows and thinks is that he wasn’t worthy of jiho’s love when quite literally he was the only mature, loving, and caring partner jiho has been with. So whose fault is it that yujin is done being a door mat and always has to be the one to twist and turn to jiho’s whims and needs? Last time I checked, it’s a partnership where they treat each other with love and equality

Are you honestly kidding me? Did you even fully read this manhwa? Hmmmm maybe its bcz jiho never tells yujun anything? Maybe its because Yujun is a human being thats wasted all his time and years chasing jiho just for him to reject him many times and break yujuns trust when his trust was at its peak? Hmmm idk what a hard thing to think about
...why am I seeing people not agreeing with Yujun???? Like he knows jiho is not good for him and every time he's always left. Im actually happy we have a character that gets fed up with the ml but still wants him but knows the best is to leave since they'll probably do the same thing again honestly you guys can fuck off if you disagree