So at the end the mangaka made the wife completely snap and become 10x more horrible than ...

So at the end the mangaka made the wife completely snap and become 10x more horrible than she ever was before in the manga to make it ok that she dies ? it was almost too much of a stretch for her character so it didn't sit right with me, it really just seemed like the mangaka was doing everything they could to get us disgusted with her at the very end so that they could kill her off. I mean he even admits earlier that he didn't know the ending yet, so the ending came out forced in terms of a lot of the character dev. And then red head is made the "heroine" of the end fight to make it like it's ok that she gets to live on with her sunbae? And we are just supposed to ignore the fact that we spent the entire manga rooting for the wife and getting pissed off at the rapist girl and suddenly be happy that he gets to get to live happily ever after with his own rapist- I mean I guess the main character ending up with their rapist happens in some of those really bad shoujo manga (and the genders are reversed) but I really didn't see that happening in this manga. Ha jin is a victim of psychological and sexual abuse though I guess so maybe it's just showing no matter how badass you are it's still hard to escape your abuser? but probably not...