Quote:
um, WTF? Why would this girl be interested in me?
From what I've seen so far, you haven't given her a reason
not to be interested. She seems to enjoy your company, and feels comfortable with you. That comfort level is just as important as attraction, and it seems to be already there.
Also, the tone of the quote (and this thread's title) makes you sound surprised that a girl is interested in you. A long time of rejection gave you an opportunity to fine-tune your skills, and now you're getting results. Good job. I'm sure you heard this before: "sooner or later, you'll find someone". Well, this girl could be that someone. So hope for the best while being ready for the worst, and everything will work out in the end.