That's a bit of a blow out dude. Try to keep those fingers in check when those urges arise. Just learn from it I guess.
I know how it feels though... at the time it makes so much sense to just send that email, or ask those questions. I've done some things that I look back at now and cringe...
But you live and learn, next time you find yourself typing up an email, just save it as a draft or something and wait a day before thinking about sending it. I'm sure you will reconsider and be grateful you didn't.
Will be interesting to hear what she has to say if she does respond though...