It's just stupid, for some reason Young gae is fucked in the head and keeps seeing miyeon in seok ho. I read ahead with shitty mtl and spoiler:
There is a scene where seokho puts on miyeons perfume to manipulate young gae even further and he starts basically assaulting her since she didnt know it's him. Im not sure if they actually slept together but he gave her hickeys all over until she stopped him. It's just so tiring and rage baiting. Everyone except Juha is truly completely messed up and an asshole.

So what this story is even about anymore?
Juha is some heiress of some island syndicate, Miyeon is a complete shit, same with her adopted daughter she fucks, even Youngae became even more unlikable as events are happening now and what and why she does with her husband, all other characters are basically evil incarnation including the husband and also that father in hospital.
Basically only likable character left is Juha. But maybe author gonna have some break down to fuck her up too in some way like they did with all other characters through the story.
This is insane how the story changed from soemthing interesting to lowbait weird drama insane shit for all characters.