I think he should stop using past relationships to judge the his present one...and just say what he feels

It's kinda sad how inconsiderate some of yall in the comments are...yes sieon might have went about things the wrong way. But obviously that guy has some kind of past trauma that caused him to be this way, and namwoo is acting like he didn't know sieon was like this all along. He LITERALLY said in a recent chapter its what he likes about him

The scene that got me here

The dude is fighting literal demons tryna control himself