idk why u hating woojin ,

Because he is a psychopath, selfish and only cares about himself..

but atleast he loves the boy and when were inlove we intend to do psycho and selfish things

Well he is one of the reason why heagyung went through such a traumatic part of his life. Not once did woojin tried to stop his grandpa from destroying heagyung's life. And no thats not a healthy relationship thats a big red flag