That whole theory on if a chick becomes friends with you, that you won't ever date her, is completely true. Most girls only want something when they can't have it, so if she finds out that you like her, then she isn't going to like you. And if she poors her thoughts out to you, and you help her like a good buddy, she isn't going to like you(She'll treat you like her best friend, though). You have to flirt, it's like a game to them, so in order to do it right, you've got to play the game.
But seriously, don't get into relationships when you're 14. When you're older, and serious relationships actually matter, the bullstuff drama you face now will have just been a big waste of time.