It's preached on these forums that you should NOT go back to your exes... Going back to your ex leads to ONLY TRAGEDY! It's very RARE you end up with an ex and its a good outcome... going back to an ex might be a good short term fix (in my opinion, it's never a good idea anyway), but just think about the long term. She's probably just gonna cause you more hurt.
She's just trying to see if you're still in her reach so she can stroke her ego/validate herself that she's desired by you. My advice: please, please, please, for your own well-being, talk to other females, and try to fvck them. There are BILLIONS of girls on this planet. Just think about having an opportunity to fvck billions of different females in this world. You have that opportunity. Why the hell should you waste your time on a damn ex who's really just tryna play some childish ass mind games? Pick up your self-worth and self-respect and kick that hoe to the curb and go fvck some different women; you're worth more than going back to a foolish ex who just wants to stroke her own ego.