She started crying while we were hooking up?

In the middle of a hookup yesterday.. this girl is on top of me kissing me and then stops. She starts crying and I ask her what's wrong.. she says something along the lines of I thought I could do this but I can't I still have these feelings for you and I don't know if they're going to go away..

See.. we had previously hooked up and I kind of just stopped contact for a few months while I hooked up with someone else. I realized I guess I kind of strung her along but she seemed fine to hook up again. I just didn't know she had felt that strongly towards me enough to have her crying after this many months..
She started crying while we were hooking up?
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