@Shyguy420,
Jespah and Punkey have the right of it - she is not into you one iota.
-The times she talks to you seems more to tease you so that she can feel you pay attention to her before she dismisses you once more (it's a power/ego thing).
- coming on to your best friend is a cruel and disrespectful thing to do (and what the hell was your best friend doing?)
- touching people you care about isn't creepy and stupid if you have that sort of friendship or more. Otherwise it can be.
You do realise that girls who barely know you're alive are looking for a different kind of guy, right? And that you're far from what she is looking for? That doesn't mean that you aren't likeable or even loveable - different girls find different qualities attractive. Just that the one you're fixated on, isn't into what you have to offer as a guy (personality/character wise)...even if she does show glimpses of maybe - you're likely just practice / ego boost material for her.
Go and find someone better.