Have you ever felt sexually attracted to a friend of the same sex?

I'm a dude, and will only date women, but I cant help but get a light headed feeling aroung my best friend. He makes me confused. I want to be around him and when Im not my heart hurts. A girl tried to force me to ask him out once, and he makes jokes about it all the time now, and refuses to hang out ' as much' because he knows how much I feel for him