Girl disrespecting me even when I told her to stop multiple times, so I cut ties with her?

There was a girl I was talking to we hit it off very well and she used to be very kind and nice until a couple months later she started to become extremely rude. Calling me insulting things like pathetic, not valuable, short but this never used to happen. I've told her to stop four times and she still continued to be disrespectful stating one day she'd become famous one day and that I will miss her. The thing I'm weirded out by is that she was so kind and nice during the months and it was genuine I believe until this happened. I now cut ties with her forever and am not going to talk to her again. She did say sorry but then again she said sorry about 4 times and still disrespected me. Maybe she's just young and doesn't understand but I told her with full respect that I wanted her to stop. What should I do am I in the wrong? What's up with her?

Girl disrespecting me even when I told her to stop multiple times, so I cut ties with her?
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