Is she lying on her break up reason?

We dated 2 months. She just got out of a relationship 1 month before we met. We had sex 3 times. She started to be cold cancelling plans etc then finally when we got dinner she had this emotional panic attack said she has been struggling with the feeling of guilt because she still has feelings for her ex and now having feelings for me. The area we we're in she said her and her ex use to hang there and it's bringing back memories...

So she came to my apt next day gave me a hug and ended it said she thinks it best if she is alone. What happen at dinner made her realize she is not in a good place to be in a relationship...

Does this sound like a good reason? I really like her and this stings really bad :(
Is she lying on her break up reason?
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