I'm sure you've gotten plenty of advice from others, but no way in hell I'm gonna look over 8 pages... but here's what I gotta say, and this is to basically everyone who's in a situation like yours:
If you like someone and don't tell them, why do you like them? Don't you want to make them feel special? Isn't the point of liking someone is so you can share happiness with them? Seriously, whether or not she likes you back, you'd feel a lot better knowing it then not... and be able to open your heart to other people/things as well. Don't dwell on something too long. It's not good for your health.
EDIT: I saw some bits of posts from others and all I gotta say is... don't make silly excuses. SERIOUSLY!!! If you like her, disregarding all your weirdo excuses, go ask her out. If your excuses are THAT important then you're better off not thinking about this girl. Another thing to keep in mind is, if you like someone, you should be able to accept her and the people/things around her. You don't have to like them, only respect them.