PS .. I can understand you are annoyed and disappointed with her. I've been in somewhat the same boat as you. I had a very close friend (arabic gal) in high school, we were like glued together, did everything together. While we were in 12th grade she got married to her distant cousin of her own choice and still, our friendship was great, maybe because we used to see each other everyday? .. Anyhow after our graduation she got pregnant and after her delivery, for some reason she got divorced.
I was there for her. Used to talk to her all day long, we would sms and she would even just call me up and let me know she was coming at my home at any hour - I never minded although my mum used to think otherwise :p. Suddenly we started to loose contact .. if I would ask her for some help or if we should meet up she wouldnt reply the sms so often or she would reply after days .. no calls .. At that moment I didnt know what was the cause - was it something I had said or done maybe?, but after some time she told me pr. sms that she was getting engaged (in their culture - nikkahfied). At that moment I understood clearly what it was.. She did exactly what she had done to other friends when entering college/getting married .. and after that we lost almost all contact .. we send sms on Eid, Ramadan and new yr .. and only met once last yr ..
Before our last meeting I was kinda sad that there was a new distance between us now and i felt I had lost a good friend .. but during our lil cafe meeting I realized it was all about her and her and her .. all abt her new fiance, how nice he was and how much better he was .. The exact words she used to describe her exhusband with .. I'm happy she is happy .. but I lost some close relatives in the time we hadnt seen each other and she knows well, but not once did she mention them or anything .. it was all about me and me and me... These kinds of "friends" are the socalled "hello shello friends" .. No need to put efford into these relationships..