Maybe she didn't have time to do anything else with her hair and didn't figure on seeing anyone she cared to impress anyway. Or maybe some other guy said he liked her hair natural so she started wearing it that way. Or maybe the aliens decided her hair style for the day. If I took my cues from my XWs hair I'd have to say that she really isn't entertaining anything with me because she doesn't do anything with it except throw a baseball hat on top of it.
All I can say is there is a whole lot of analyzing going on. The interactions you have been having are great. Enjoy them, try to have more of them, but there is a lot of action reading here. For all you know she's happy as a clam with her new life, new place, and is pleased that you are taking the divorce so well and have moved on as well.
In the end, it's not the years in your life that count. It's the life in your years. Abraham Lincoln
It is hard to fail, but it is worse never to have tried to succeed. Theodore Roosevelt
