if all you are going to do is just talk about liking them, what's the big deal?
your friends take action, and you evidentally don't.
also you have stated before that sex is not important to you. that's real sweet and all, but girls want guys that think they are 'it', so maybe you give off a vibe of not caring about that aspect of a relationship. you may be branded 'the friend', and that's something only you can change.
if you put forth the same effort you have in here, you'd have a girl.