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.
He likes likes you! Dancing with the other girl was to make you jealous. I hope this helps.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.