Why doesn't my ex wife leave me alone if she hates me so much?

I know my ex is mentally ill , but she is the one that ruined our marriage and decided i was no longer a priority to her, She would put me down, criticize me , belittle me, compare me to other men , made me feel like I wasn't good enough, she stopped sleeping with me , she stopped being intimate and affectionate with me , to the point i finally had enough of her shit and i fell out of love with her , she became Ugly to me and she was never ugly to me until she started saying all these negative things to me , so i told her it's over and that she is best to go find happiness elsewhere, because she clearly isn't happy with me , i told her we can sell the house and split the money and go our separate ways, she says fine but then changes her mind and acts like everything is ok , when it isn't ok , she still lives in the house with me and she lives in the basement , we both do our own things , but she acts like i am wrong for doing so , and now she is trying to play a victim when really she is the POS. I told her i no longer love her or find her attractive hoping she would get the hint and leave , but she won't , what is her deal? I know she is going through menopause but her menopause is extreme with her mental illness combined , ad i can no longer tolerate how she treats me , so i barely go home anymore after work

Why doesn't my ex wife leave me alone if she hates me so much?
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