based on the positives and your self image, it seems like she is a overly flirtatious girl who enjoys having the upper hand and control over a self conscious guy. why do girls sometimes do this? because they can. to see if she is genuine with her comments, see how she interacts with other guys. is she the same way, or are you special?
it's possible that she does find you attractive, but she may feel like you are too thick to ask her out. wait too long and the opportunity will slip away.
the negatives didn't seem too bad, still possible.
good luck