gregpent has hit the nail on the end with the Cat String Theory (Mystery's I do believe). I used to have little kitten that loved to play with the toys when we'd dangle them above him, but the minute we put it down in front of him, it was too easy and he'd just walk off.
To affirm gregpent's suggestions, avoid sounding needy, don't give her the power or let her control the situation. It's sounds like you're just putting yourself on a plate for her to come and help herself when she wants to, it's all on her terms. Not good.
If she's developed enough attraction for you then she'll come to you, if not then you're going to have to get back in touch, build more attraction minus the neediness then arrange a date. Be assertive, not wishy washy.
Or you could put this one to rest, learn from it and move on.