Well...She certainly does seem a bit unstable, considering that ending.
Still, our protagonist seemed like a bit of an ass at first, just using her and tossing her out like that, so I guess I was somewhat relieved he decided to let her stay with him, but...
Hm. Makes me wonder what happened to her to make her this way. Other than that, it's nice seeing a Yandere release, gy makes some great stuff.
I suppose the one (sort of) positive part of having a yandere psycho-crazy bitch love you is that you know they will love you to death... Literally in some cases.
I feel like this falls on psycho category, because yandere's love the male character and go psycho when some other girl tries to flirt with the person they like. And this was just a girl that was crazy I never felt like she had grown attached to him she was just crazy.