Other than asking you for favors and accepting an invitation to go out with you (and IMO you sort of had to cajole her to accept) your W hasn't given you any indication she is ready to move forward.
As a woman I can tell you when you are already on the fence about a man and they do ANYTHING that resembles pursuit - it's a major turn off. It feels like pressure and suffocation and it becomes VERY easy to get off the fence and decide.
Don't try and create an artificial bond if it's not yet there.