^I'm really not proud of it x_x;; (in reference to junglefever) And I have no idea why girls even dated me to begin with. It's so weird. I mean, I'm not repulsive, but I'm not THAT attractive. I don't even know <.<;;
Also, Yoshi, I found it XD Was impatient. ;3 However, moving on! What I'd say is just be patient with her. Be understanding, and take it really slow. If you're serious about this woman, any amount of time that you need to wait is worth it. Seriously. Because you'll find girls all over the place that you find attractive or cool or that you get along with--but it's literally one in a million that you really fall for. Once you find one of them, never give up unless it's absolutely clear that nothing's happening. With girls who are more hesitant to date, you have to give it a bit more time.
She might even say that she doesn't like you, or isn't interested. Now, I'm sure 90% of people will disagree with me, here, but I'd say that what she says is not always the truth. Sometimes they say they don't like you, and months later it finally hits them that they do. We don't always know exactly what our emotions are until later on. But, obviously, have sober judgment and don't just sit in wishful thinking.
Now, as for her smiling and saying 'hi', that's not necessarily liking you. If you're convinced, I won't try to dissuade you, but some people just act nice to people they think are socially ignored. That's what happened to me a few years back, luckily I didn't like this girl, though. I was just weirded out and thought that she liked me because she was being overly friendly. But it turns out that she wasn't. However, what I'd say to you is to just take a sober look at it, and if you really think there's something there, just wait out whatever's going on.
I can't tell you what she's thinking or what's happening, but I do know that a lot of girls are very hesitant and don't want to engage in a relationship, even if they like the guy. Sometimes they're just afraid of what's going to change. This is what happened with my first girlfriend. I honestly think she wasn't ready for it and that's what sort of lead to it being a little bit unbalanced.
So, bullet point the ending of this whole rant: Wait. That's all I can tell you. Use this time to really take a sober judgment of where your feelings are at, and what you think hers are at. Beyond that, I'd say try not to worry about it or think about it. Doing that too much just makes you obsessed. So spend your time focused on and doing other things. Seriously. That's the best medicine for these things. Because no girl likes to be the center of the universe. You think they do, but if they're your only love and care, it just becomes too much for them. A girl wants to be swept up into a larger story, rather than be the larger story.
The most beautiful relationships tend to be the couples who are united in a common goal or cause. That's why relationships founded in the Lord tend to flourish so greatly.
Not sure if any of that helped, but let me know if you have any specific questions that you need answered. Since I'm not sure exactly what you were looking for, I just sort of rambled for a bit ^^;;