Well This one you'll have to make your own decision as to whether you want to continue doing all this stuff and take a chance or let go and cut your losses. She hasn't given you a straight answer which sounds like she's looking for some fun or a rebound from her previous relationship. I personally think she is using you to get over her ex. And I would stop sleeping with her and tell her you don't want a fling (if you really don't) you can't worry about losing what you guys have or may potentially turn into because there's nothing establsihed yet and it sounds as though she doesn't want it to.

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If you can't handle the thorns, don't crave the rose!!