Met a boy last night?

So I went to see a show last night just a local cover band, during break one of the guys and I made eye contact and he started some conversation he asked for me to add him on Facebook which I don't get especially when your a little older 33 and 31. During the rest of the show he def made eye contact with me smiled seemed a bit nervous though. At the end of the show I was a little drunk not sloppy but he walked by said he was going to pay his tab and kept trying to walk away to pay the tab he asked me if I was going to his show next week I said probably not I said why do you want me there he said well yeah you like us so come watch us I asked is that the only reason he said obviously not he kept trying to walk away to pay the tab. Then he says add me on fb. I said okay Now I kinda don't want to add him am I crazy or if a guy whos interested in you ask for your number Im not some groupie.