Why are my crush's friends doing this and does my crush like me?

My crush's friends keep on giving me long cold stares one day then the next they are all smiles. I don't get it? Also my crush's friend always talks about me on his twitter, repeating things I said and talking about things I write on my twitter. But he's never once talked to me, he only knows about me through my crush. Has my crush told his friends about me and if so, does he like me then?