I know how to deal with this from experience.
1. Don't talk to her until she tells you she hates you.
2. Don't talk to her until she keeps texting you and eventually asks why you're not texting her back.
3. Remind her of what she told you in step 1
4. Give her one more chance
5. Repeat steps 1, 2 and 3
6. Never talk to her again.
7. ???
8. Profit/Freedom.