Flirting?

Update: I know someone did ask, his wife was there! And he friend requested me on Facebook this morning (Monday).

We all went out for drinks with new friends (all couples) last night (Saturday). There were like fifteen of us so we were mind of just sitting where we could. The girls on one end and the guys on the other. I was sitting next to one of the husbands. My boyfriend was across and down a ways so we all had just asked for separate bills so the waitress didn't have to keep track of who was with who. At the end of the night one of my boyfriend's buddies had picked up my boyfriend's tab because he was being celebrated. Then, the husband next to me picked up my tab and I told him he didn't have to do that. His response was "pretty girls shouldn't have to pay". To be noted, I was very intoxicated. He is always super nice to me and I have never thought anything of it. But then he made that comment. I am clueless when it comes to this and can't tell if I reading into it too much. He is just like a joking guy, but his comment was sincere. I told my boyfriend when I got home and he had said that he did tell him jokingly that he was going to hit on me. My boyfriend is not the jealous type and just thinks it's funny. Was he flirting or just being nice?