Some people confuse between love and obsessed and i think Hwan is too deeply obsessed with Chiwoo. This type of people will make their lover or loved one suffer a bit so they would always come back to that person. You know things like the yandere/psychopath out there always does
I’m so confused so if hwan loves the mc so much why would he send him monsters and why did he hurt him when they met as super boys? He’s super sus.