MiddlePath, I am sorry to hear that things didn’t work out… 🙁
However, you should remember that everything happens for a reason. perhaps you were supposed to meet this girl in order that you will be prepared when your TRUE zivug comes along. maybe this was G-d’s way of making you realize that you DO deserve someone amazing! or more importantly that you ARE amazing and that no one should be considered too good for you! your zivug is out there somewhere,she is amazing, and she is waiting for you (and only you) to appear on her doorstep and sweep her off her feet!