Well, if you got the thing that happened to me, which is when you're close friends with a girl, and suddenly you start having feelings for her (I honestly didn't see her as a relationship partner at all) then you're screwed. You friendzoned each other and then you realize that you have something for her, and well, you're stuck.
There's just no getting out. So what do you do? You swallow it whole and friendzone her again, knowing that it can never work out.