-^ Speaking from past experiances... ^-
crotchrocket: I have been in the same situation with a few girls in the past...
What needs to be done is either u ask her out, or u tell her that the truth is, is that you are single, and that if you Do get with other girls, she musnt get hurt.
And u need to also make that clear to hr frirends, that u are NOT "taken" and that u & this girl are JUST good friends.
You cant put your life on hold because this 1 girl might get hurt if you are with other girls.
A nice way to tell her this is as follows:
You: Umm (her name)... we need to talk about something...
Her: ya... ok... what is it?
You: I need to talk to you about our Friendship (note that i said "friendship")
Her: what about it?
You: I dont know exactly what u see our frienship as, but i think that we need to make it clear to ourselfes, AND others what kind of friendship we have, and if its anything more than just a friendship or not
Her: oh.. ummm... ok... so what kind of frienship DO we have? (at this point she will probably be worried (if she likes you) but this is the "decising" point)
You: Well, i see our friendship as that you are one of my very close friends, but (her name), u do realise that we ARE just close friends right?
Her: well, i duno... i thought that we were something more than that (sad face, blah di blah)
You: well, u are a kewl chick & all, but i just dont think that i like u in THAT way, ur one of the kewlest friends i could ask for, so i hope u dont go and get all mad at me now, cause i really DO like your company, just ina frienly way rather than a romantic way.
She will probably be dissapointed at this stage, but face it, she WILL be, no matter WHAT way u tell her what needs to be said.
To ease things maybe take her out for lunch or something.
Thats what i did the last time, and that girl and i are STILL good friends till this day
Good luck.
Laterz...