Is it right to cut ties with this friend?

I have a friend that I'm planning to cut ties with. We has a fight last year just because of the boy she liked that I don't even care.

After a year, we decided to reconcile. But she's been really abusive and intrusive to my boundaries. She even worsen my sickness a week ago because of my stress to her.

Few days ago I said that I might move house. Btw we're living in one house. I showed her the house, and as I remember I even told her the address. Im planning to move this October, and she knows it.

Just this morning, before going home, she told me that she already moved. She didn't said where it is, but I asked her. She move where exactly I'm planning to move in November.

Now I saw that she never did change, her pettiness kills my last string of hope in our friendship. How can she even smile with what she did?

But guess what, I saved a lot of money because of what she did lol.