Here's another thing.
There is nothing wrong with the "friend zone"
There is nothing wrong with actually being friends with a girl you like so long as you respect that and still treat them like a friend. It's important to have friends, because you never know what could happen. Girl-friends have friends, which makes for really casual opportunities to meet other girls. Girls talk, and sometimes those friends start talking about you, and it can really create great impressions.
If you're "friend-zoned" and you are actually a friend, she will tell her friends how great you are. So, a girl-friend who isn't interested in you physically, may tell someone who is interested physically about how rounded your personality is as well.
It's like selling yourself without blatantly telling someone about yourself...remember how viral works, the target is more likely to see something desirable if someone they trust is the one doing the "selling".
Before this turns into a wall of text, here is my recommendation.
If you are friend-zoned, make the best of it. Forget about a relationship, and just be friends. Be awesome and let her see how awesome you are. There are so many benefits to friendship with a girl you like, it would be stupid to abandon the whole thing just because you're not getting what you want.
