Girl Doyeon doesn't even know what to love a person even means and if she actually did she would not have fucked Jinjoo while she was at her lowest point,men do that shit because they will wait for a woman to be vulnerable and try to fuck her,Jinjoo has learnt from her oast,that asshole she married clearly don't love her but it's her body he wants because even if she didn't get wet he would fuck her and even if she didn't orgasm he fucked her as per what she told asshole Doyeon in the beginning in so many words.
Poor Jinjoo saw no value in her body even telling Doyeon she can do what she wants because she let her husband have her whenever he wanted if she wanted to have sex or not is why he was thought when he came back things would be normal but Jinjoo going through all she did made her grow up mentally because maybe she couldn't see before that she let dude lead her by the nose most of her adult life until she had no social or life skills or common sense.
Doyeon love's Jinjoo, that's for sure. But she's suffering from obsession due to the fact that the woman she fell inlove with was already married. It'll be more easy to judge Doyeon negatively if that's the only issue. But the fact is, that guy is an asshole. He left Jinjoo in a very very dangerous situation that will forever hunt Jinjoo. Those assholes are rapists, harraser, and possibly killers.
While Doyeon, there are so many times when she proves how much she care for Jinjoo. And even some here says that she forced herself to Jinjoo, Jinjoo gave her full consent at first, realizing that she has nothing to lose. And to remind you, Jinjoo is much much older.
It's easy to look at things in black & white, but in reality, things like this happens because of so many factors.
I will not justify the cheating, force sex, and even Doyeon's sour attitude.
My point is, this manhwa is really good, shoving itself to my top 5. It makes me question so many things, and think if the acts were in fact, right, wrong or even justifiable.