It's hard for me to comment on what you should do going forward, because I don't really know the situation. But from my experience, if you're unsure if a girl is interested, she probably isn't. It doesn't help that you seem very indecisive about how to handle it. That's a recipe for two people who probably aren't going to be dating anytime soon.
I've never once seen these type of threads go from this to "Turns out we started dating, banging every other night, etc."
Again, I don't fully know the situation, but it's your responsibility to understand the situation and act accordingly.