She could be up to anything so I would just live your life like your already doing and see where it leads. When I would see similiar signs and try to place a meaning on it, good to bad, my IC would pull me out of that thinking. You might believe she thinks she made a mistake or could care for you and it could be something else like her seeing if your still attached or even jealous of what you have. Could be anything so it a best to not assume one way or another. I still do it more than I would like but I am working on it.
Accept what is, let go of what was, and have faith in what will be
