If she doesn't fancy you, that's just something that you are gonna have to deal with; don't take it personal.
Hey, you said that she got all dressed up and tried to talk to you? That's a good sign, my man. Pursue it! What's the worst thing she could say? 'No', right? If she doesn't want anything more than to just be friends, stay her friend, suck it up and find some sweet wahine who does.
Go and get her, young stud!!!
~V