These things sound date-like to me.

When I first met my husband, and we were dating, I didn't know if we were boyfriend and girlfriend, but I was too embarrassed to ask. (Hi, I'm 13). After a couple of weeks, I was really getting hung up about the whole thing. Then one day he introduced me to his friend by saing, "This is my girlfriend." Whew. I could stop sweating.

Go along with it, be smitten, have fun. Hopefully things will naturally develop so you can figure out what the hell is going on, ha ha.

Edited to add: Oh crap. I neglected to read the post about when you got together with him at the bar. By the way, do you talk with him on the phone? Any plans to go out to dinner/do something not involving his music or the bar scene?