I'm back! Well, I've been around, but not posting a lot.
It seems that her smitten-ness is wearing off. She has traveled a lot to watch her daughter play softball this spring. The first few times there was lots of communication, and nice homecomings. About a month ago she got back from one of the trips and just seemed more reserved. I had the kids a lot that week, so I didn't see her much, then the next weekend she passed up opportunities to get together. Finally she she texted about not being sure what she wanted, and needing time and space. Well, she has had that in three weeks since then, we didn't see each other for a week, until she left on her last trip a bit over two weeks ago (I took her to the airport, and her car is in my garage), and we have hardly communicated while she has been gone. Today a got an email with a more references to being "friends" than I would have liked. I am not going to say much back. I will see her Sunday night when I pick her up, but I think we are probably done.
I could analyze, but in the end the reasons don't matter. I'm pretty sure it wasn't me, and I am not going to have any regrets. I would have preferred a different outcome, but it's better that it happened now than farther down the road.