I know she deserved it. It's just that, she's so crazy and delusional, the effect of the punishment is kind of... um... not very satisfying? Like, it's great for revenge but does she regrets it? Like, not at all. Even at the end, she still clung to him, believing he would save her until he burst her bubble of course. And then she suddenly died. I was like... she deserved longer torture but I also get it. She got off quite quickly because she didn't deserve their time either. So, in the end, it was quite satisfying and yet, there is still something missing. That's all I'm trying to say.
It's definitely okay though since our FL and ML are better off spending time with each other instead of this cuckoo.