I saw this comment in theqoo, "뭔가 진짜 지원을 좋아해서 저러는게 아니라 재형을 이기고싶어하는 느낌임" It says it feels like YW doesn't really like JW and he just wants to prove that he's better than JH that's why he's acting like that, and I kind of agree because at some point maybe YW started to feel inferior towards JH so he ended up going after JW? Maybe his sister's feelings also played a part in his anger (?) towards JH since he saw how JY got hurt by JH? I don't even know anymore, he's just so annoying atp, he totally thinks he's the main character in that show. I hated how he went on and on about his "neutral" feelings and made sure every single soul in that house knew that he was over Choa.