I'm confused about the communication between you and your friend. If he's saying "we will go", and then he's there with a friend, what is it you are wanting him to say and do differently?
Did you want him to pick you up or something?
It sounds to me like you are expecting him to take care of you, and he just wants to have a good time. Do you have fun together, or just have deep conversations, or what is it you do together? He might be messing you around, but can't see why, from what you have said.
He might actually think you are his best friend, but that's just something he does for fun. I would just go ahead and ask your friend questions... what's the worst that can happen?
I don't know how you would be very close friends if you don't communicate these things.