Someone I thought was a friend. Now she wonders why I was upset with her?

Sounds to me that your best out of te way from them both...No real friend would do that to you ..so be strong keep going and look forward in life... you only live once try not to dwell on the past look forward to the future and learn by mistakes,.....she seems she must of been one so just be more aware in future..Good luck and hope you find happiness x