I have a similar story, but rather I was the one that started with the first hint that i liked her...
Well anyway basically my story with my lady was kinda freaky.
Cos we went from being friends, to bf/gf to me proposing marriage to her in a span of less that 5days.
So my advise to anyone is that if you really like a girl, then tell her exactly how you feel, and the worst case is that she will disagree, but in that case you would not have been successful anyway.
My case is the extreme end of the spectrum.
I kinda now use this case study to pester my friends, I say hey when are you and your gf getting married, it seems its been ages now, i proposed to my finance on the 4th date...
-"C"-