It's okay - try not to be too hard on yourself. Some days, all we are going to be is alright. Some days, all we are going to be is sad. So, as Carlos has said to me and many others here...be kind to yourself.
As for the mindreading, I know it is hard to stop that, but it helps when we can. I have learned in my experience that what I come up with is often wrong. I would suggest that you try to take it one step further and not even examine why she emailed you, just note that she did, accept it and keep going.
As for what she will do with the dismissal, well, you will know in time. I know that probably does not help much right now, but there is peace in accepting that some things are beyond one's control and just letting go of them.
I hope you find a bit of peace today...just remember that one ok day does not mean, in the grand scheme of things, that you are not doing well.
