Imagine this... You have a crush on your best friend, the person you know best. People tease you about getting together, but you both laugh it off and smile like nothing's wrong, but in reality, everything is messed up. In time, you have to watch your closest friend and the person you might possibly love fall for someone else... and that hurts.
Outside, you're happy... But inside, you're hurting. You're hurting because you know for a fact that you can treat them better than anyone else could. This crush isn't just a crush anymore; it's something much bigger. It's love, and you admitted that to yourself a long time ago. You're well past the denial stage, but it's too late. Now, you have to sit back and watch the show; and the show consists of watching your best friend kissing and cuddling someone that's not you.
But you're determined... One way or another, he/she will be yours. Why? Because in this crazy world, everyone loves the wrong person. And soon, that's going to be fixed.