Guy advice needed ASAP!! Please help!! 10 points!! ANSWER MINE I'LL ANSWER YOURS!!! :D?

There is always a possibility, agreeing with the people below he may have danced with them to make you jealous. Girls are alien to most guys, You not showing you're interested probably caught him off guard even though you were. Guys are more responsive meaning if you show them you're interested they catch on, little gestures and all that is where guys typically falter. Talk to him, Or even ask him out somewhere and see how it goes and if you aren't convinced then. Just talk with him.