OMG I really need help about this guy, anyone wanna help?

My friend, who I love to death cuz she's the sweetest thing, confided in me today saying that she was at an end of the year party that i didn't get invited to and my crush and her crush were singing karaoke and MY crush went down and grabbed her hand then they started DANCING. So apparently now she likes him more than her former crush. I'm like TOTALLY in love with my crush and I know he doesn't like me the way I like him because he won't tell me. What should I do?