Well, that's a perfectly good vent, but I doubt you'll feel that way for long. From what I read you have this one chick who is avoiding you. So why not confront her? Even if it pushes her away from you even more at least you will learn what went wrong and learn from that. Don't EVER EVER EVER TAKE ANYTHING A WOMAN DOES SERIOUSLY. Yes, some women will avoid you, ignore you, forget about you and as soon as you know it they will be calling, texting and stalking you from one hour to the next. Trust me such a thing as "she is avoiding me" isn't a bad thing. Try talking to other women, try being calm, relaxed and confident. Go running, learn guitar, pick a hobby and have fun until you calm yourself down enough to want to try again. Play the same games they do. Trust me she is not the only one that looks or acts the way she does and she sure as hell isn't unique as you might believe she is.
Like Pook's Book said, it's not that you failed at trying to get a women, but you are simply weeding out all the bad ones to find the right one.