Make note of how she's been acting but I think you should stay the course you've been on. When you go shopping for presents, mention that you're going to grab lunch/dinner somewhere (are you taking the Ds shopping as well so it's not just you and W? Then you could say "This was nice but I have to get going, I promised the girls I'd take them to (wherever) for dinner."). Wait and see what her reaction is to that before you ask her to join you if she wants.
Your post from last night does sound like your actions have been noticed. Just remember that the only thing of which you are "in control" is YOU.
