I was in similar situation two-three years ago. I too, like a
girl who don't even know that I existed. I did not have the guys to
even approach her. Eventually, as we left sec sch (i went to jc and
she went to poly), she got herself a boyfriend. Ironically, I
finally approached her (through msn) only when we left the school.
We don't talk to each other now though (even though I still have
her as my contact, but I'm not sure about her)
Two years down the road, I look back and realise how foolish it was
of me to get so crazy over a girl who probably don't even know me
that well anyway. Don't worry, you'll get over her sooner or later.
And when you do, you'll look back and laugh at yourself...
...and cry at the same time for not having the guts to approach
her.