No, I haven't. Maybe that's because I've never been in love before. ^^' At least, I don't think I've been. I had some good friends who fell in love with me, but unfortetlany I had to reject them.. I really love and care about them, but I wouldn't like it to have something more than friendship with them. So, I'm sorry to tell you this, but for them it didn't really turn out good. We're all still good friends, though. That's a thing I'm really happy about. ^^ I'd rather be best friends than screw up the whole relationship due to falling in love. It doesn't have to turn out that way, but.. I don't know. *Shrugs*
All I can say is that you got to follow your heart. If you're real friends the one you like will accept it, and if he/she doesn't return your feelings you're still should be able to stay friends. All the best! (=