I took her "if" to mean "I don't know if I hurt you or not, but in case I did, I'm sorry I hurt you." She reached out and apologized, and gave reasons for why she wasn't able to be there. I'm wondering why you are calling these reasons excuses and why you aren't taking her at face value. She apologized and reached out to you. That's something a friend would do.

To echo downandlonely, if this is really something you can't get past, let her go. But my advice is to cool down and give this a few days before you act.