I don't feel comfortable with her back in the equation.. Hwang definitely deserves better and it's a fact. I don't care for her getting second chance or her 4th chance at mending herself or whatever. I personally don't give a fuck about her. As long as she is permanently away from Hwang and not causing misery in our main couple's lives, then I'm good with whatever plans the author has for her.
It's like the author was flipflopping between sweet fluff and dramatic twisted ..I am always interested in manipulative characters but this kinda creeped me out with the medicine especially brought into the equation..It was not consented by the uke and his controlling personality didn't make this story a winner for me. Consent is one of the key to love guys. Respect your partner's needs and preferences, opinion and perspective.