Are these the signs of changes I should be looking for? Why would she want to spend so much time with me and the kids if we are 1/2 way through a D that she filed? Is this really her testing the waters? I feel like it is.
It MIGHT be. I don't think you should change what you are doing. If she does tell you she has changed her mind, do not jump all over it at once. She needs to want to come back. And you have to decide what you want going forward from her.