YOU DID THE RIGHT THING! Great job standing up for yourself. I know it was difficult, but you will be STRONGER in the long run!
She is going to blame you for everything right now. I wouldn't take much stock in it. She is mad her fantasy world has been rocked, and frankly, she is mad that she has lost control.
Don't feel bad about snooping. You did what you had to do. Don't be so quick to give it up either...
You take care of you. That is what everyone will tell you. Take it to heart. There is lots of good info here on how to deal with this. I personally have been GAL-ing, doing things to "look better, smell better", etc. It all is good for you.
This can be one of the best thing that happens to you, believe it or not. You will learn more about yourself and achieve more than you knew was possible. Listen, I was there...wait a second, I AM STILL there... I am in a very similar sitch..but only a few weeks ahead of you. It is tough, but it will get better.
Choc has helped me out a BUNCH. You want practical advice, read his posts. Like lwb said, I want to hear what Choc has to say on your sitch. That is your que, Choc