I wouldn't call that the best idea either. It's normal to feel bad when these things happen but letting it get to you like that is just another way to make things worse.

What happened to you is unfortunate but soon you'll have to forgive her. I'm not telling you to go after her. I'm just saying that you should not have resentment towards her or anyone for that matter. It doesn't help the situation at all and it only makes you feel worse. She made a mistake and it was a big one but you have to be able to let it go and move on.