Hmmm

Maybe he's jealous? But that doesn't seem like the type of character he is... hmm..

Yeah me too. I'm kinda in between, I think he likes him as a good friend and then hates him because he's exceeding expectations

he is jealous, he can't meet his man's expectations too , his man is so shitty why is he doing this to him it is not like it is his falt to be born they did the thing after that they r blaming it on Sangmin, i'm so sad for him this shitty family turned him like that he is stressed and can't talk back to the point he is killing puppies COME ON Jinhyun what kind of friend u r, i mean he is not paying any attention to his friend at all i mean if it were me i'll feel the tiniest hardship in my friend's life zvzn if she is not telling me agh he is so insensitive i understand he is a good person and i love him so much but since he came back in time his visiob has been blured he is focusing on money way too much, sure poor people focus on money but he can do just fine now bcz he is Genious after all plz save our SANGMIIIIIIN