HELLLLP!!!!!!!!!!!! me please?

There's a guy who likes me a lot (guy A), but promises to stay as friends because he knows it's best. I wish i liked him because i know he's such a great guy, but i don't. There's another guy hoo i like (guy B), hoo's reelie nice and amazing, but one of my friends told guy A that i like guy B, and now i feel horrible because i know guy A must b suffering right now. Wat should i do???