I do wonder whether Jung Hyun's motives may have started out as wanting to protect Jung Woo from what he went through, but overtime he lost sight of what Jung Woo actually needed to move on from the experience. I think both JH and the Professor recognise JW's talent, and have started exploiting that for their own professional gain while keeping JW away from public scrutiny.
I still don't like JH at this point in the story, and I don't think we are meant to. JH represents all the fear and doubt that clouds an artist's creativity, particualry after a major setback, while Tae Young represents the spark of joy and energy of wanting to get back to it. I appreciate the ying / yang of it all - Cha Jungwoo on the precipice of wanting to do what he loves, what makes him happy, what brings joy to others, while having the fear and doubt still holding him back.
I am definitely curious where they go with this metaphor, and whether Jungwoo can find balance between Jung Hyun and Tae Young, or if he needs to let the doubt go completely.
Mr. fancy car driver, famous writer dude is threatened by Jungwoo so bad. He isn't taking care if him, he is taking care of his ego. He ulterior motive is to keep Jungwoo from success, being happy and loved. He is going to use emotional guilt to ruin Jungwoo further. I am rooting for Jungwoo and the publisher who believes in him!!!