Sooo... Dan left because of his dying grandma and he felt that he failed as a physical therapist. Not because he reached his limit of the abuse.
I stopped reading because the abuse got too much for me. I just read the last two chapters of the season. But from what I read nothing changed except for Jaekyung's career. But I don't know if I'm supposed to be happy about that. (Even though I am (σ≧▽≦)σ)
By feelings, I hope he means hate and regret.
Man I thought he had nothing to do with the fire but nope. He was like yeah that was me. So what? That's irredeemable. (-_-#)