I don't know very well what to tell you in the second situation other than wish you luck in receiving an e-mail if it isn't very late for it.

Regarding the first situation you describe, I would bet it's not the first time something similar happens to you. It's not rare.
It happens to me a lot. Everyday. I think that for our own attitute to be a step backwards in our relation with people, let's say that we don't call the attention others have, many times, even with their own presence alone.
I wouldn't call it rejection bc I don't see from your words that you know this person or she knows you a lot.