She hasn’t forced contact with Hyesung if I’m correct.
However, Dojin who owes Hyesung the truth and loyalty, has lied to him for years as Byul grew up. He is the one trying to keep contact with his mother, isn’t he worse than the granny? Personally he pisses me off more. As a partner, a husband, he has not told Hyesung till maybe recently. He disrespected Hyesung’s wishes.
Dojin gave the granny a house. That’s a lot for someone who abandoned a kid.

As much as I hate Dojin for what he did, I hate that bitch that calls herself Hyesung’s mom more.