this happened to me recently too. I felt devastated, shocked, angry, hurt and sad, sad, sad. I hoped at least I'd be able to talk to her frankly about our past relationship now it's over, but obviously we saw it so differently, it turned out!
Try venting out some of the feelings. The writing process - I find anyway - helps you understand things better and approach them in a clamer way. This is what I've been doing for a few weeks now and it helps me a lot!
Look up my blog:
http://meshehiml.blogspot.com
Take care!