Responses

No it’s just as the first bully said he got obsessed with him when he saw Sunwoo in that pitiful state. His need to dominate and humiliate him and make him “cry” was what sparked his interest in Sunwoo. Down the line things changed and now he’s interested in him but thinks everything is dandy since his interest is genuine if that makes sense
I feel the Sion guy is aiming for revenge to his bestie the bully at the first school