100%. Everything you said is exactly why I don’t blame Hyesung for not wanting Byul in the beginning. He already had trauma, add onto that being forced to keep a baby with someone who sexually assaulted you.. Yeah I wouldn’t have wanted that life either. But he got his shit together and became a great parent to Byul.
Also, Byul is just a naive child. He doesn’t know the whole story so he’s projecting his feelings that are based off of misunderstandings. His parents haven’t told him anything about Hyesung’s mum or around the time when Byul was born.. So he’s piecing together the bits of information he has. If he knew the whole story, why Hyesung felt the way he does.. I don’t think he would be hanging around the grandma.

I’ve never been the biggest fan of this story but I do enjoy it but I swear if the author makes hyesung beg for forgiveness or some crap like that….. Hes already been through so much and yeah, he didn’t want Byul because at the time he was basically being forced to keeping the baby…? To a man that he didn’t trust as he does now and that basically sexually assaulted him (chapter 19 in the original story). And while that’s of the past and Hyesung has forgiven everything and they’re happen now… I’d like Byul to be in his mother’s shoes and see how he’d handle it. Cause ik I’d be as upset and conflicted as Hyesung was. Of course Hyesung has done some wrongs but for Byul to contact Hyesung’s mother that abandoned him is actually crazy then to try to use his OWN trauma as a weapon.