Once again nice recovery. Don't worry about his behavior, try not to read too much into it. He could have decided to give you two another try and is just nervous about what might happen. You read the emails and they turned out to be nothing. Plus he is warming up to you. Be the one that gives him attention don't let her. I know what you are talking about with that attention. Sometimes when I touch my H's head he is like a puppy moving his head around wanting to be petted. Like he is starving for attention or affection.
I have to stress don't waste your time thinking about this woman. That is not where your energy should be focused.