I told my mother the night I met DH that I was going to marry him. I was 11.

She was of course horrified that I would even think such a thing.
Of course, he didn't notice me as anything but his friend's kid sister until several years later.

And even after we started dating, throughout high school, we broke up when we went to separate colleges. He didn't want to commit to a long distance relationship, and he broke my heart, but I put my best foot forward and went to NYC for college without him as my boyfriend, the only one I had ever known.
I did some dating while a freshman in college, and had two semi-serious relationships during that year. The first guy was o.k., a nice enough guy but someone I knew I wasn't in love with. The second guy was an absolute jerk -- a musician totally and completely in love with himself -- that I *knew* from that day forward I wanted my man back and wouldn't settle for anything less.

He eventually came around, realized he couldn't live without me, and ended up transferring to NYU for his senior year of college (my sophmore year), and we married 2 years later.
So long story shorter, I'd say it was after seeing what I didn't want that made me realize what I did want. And that took about 8 years.

I believe in lust and strong attraction at first sight, but not love at first sight, I think that takes a lot of time to grow.
