You want certainty in relationships. I know it's hard but if you have no future together it's best to break off contact, because otherwise you'll just feel bad.

If you break contact you can take some rest, and after a while when you're ready you can start dating again.

I mean you feel anxious because of this upcoming meeting. That's far from having fun together, and if she made up her mind I don't see a reason to continue to meet up with her.