@Tofu I don't think Jaeyoung liked him per say, maybe the white haired guy was the one with the feelings, it seemed like, in the flashbacks I mean, that Jaeyoung thought of them as family, so imagine someone from your family pulls this fuckery on you?! I'd pissed beyond saving, Jaeyoung is a sweetheart tbh.
I have a feeling that maybe jaeyoung used to like the white haired guy when they were a group but...