P17

It seems like your actions have done two things, one given you a newfound sense of strength, and two, possibly piqued the interest of W. That's a good thing, but let's keep things in perspective.
NC is a tool to help you cope with an unpleasant situation. The goal is to strengthen you. That should be your ONLY goal. Anything else is an added benefit but is not necessary and should not be expected.
Now, her unusual behaviors could definitely be interpreted as a rekindled interest from her. And admittedly, there is nothing more flattering than being pursued, especially by someone you love who recently rejected you. However, try not to get too caught up in that, because that will unnecessarily raise your expectations, and that is not a good thing right now. And because of that, DO NOT go from using the NC to strengthen yourself to a tool for getting back a WW. This is not a game, and you need not play games. While I fully endorse doing things to end and A (such as notifying close friends, family, etc), and doing things to force someone to get off the fence, be careful not to let this overwhelm and consume you. You don't want to start doing things slowly to give her a false impression. Not only is is deceitful, but you will become more preoccupied with that than building yourself up. Remember, build yourself up first and then worry about her. Like I said before, that relationship will fall apart. It's simply a matter of whether the strong P17 will want her back.
Good luck and stay strong.