Congratulations on surviving that first step back into the dating world. It's a big one and you made it. There will be many more and each one will get easier. ((Robdar))
I do have a concern about the "girlfriend" remark. That's jumping to a conclusion and assuming that you want to be his girlfriend. On a first date? No no no!! He wasn't saying that to "impress his friends". It's what he wants to happen. Isn't it enough that he is out with a lovely woman? Why the "girlfriend" comment? And the joking about marriage? He wasn't joking.
I agree with the others about his drinking. If you noticed it...it's a problem. A problem that will only get worse with time.
Be particular. Never settle. And remember..."if it don't work, jest git a'nuther"
Lisa