I am having this back and forth with this girl but it suddenly got more aggressive from her part. I heard that it was just for her to prove your method of survival (this girl uses aggressive and annoying negs), it's not worth it negging her and scalating in That direction nor it is to support her bs, what should I do?

If you'd like some examples, she sometimes says "don't touch me" or just states negative comments to push me away, I know persistensy is key, for one I am not stalking her, and she and I used to have a lot of fun being teaseful a week ago.