This popped into my head today, and I was wondering what you guys might have to say about it.
Earlier this year, I met up with a guy friend on a semi-date, and we went to a restaurant for lunch. While the waitress was taking our order, she barely acknowledged me and seemed to be flirting with my friend. She forgot to ask me for my drink order (friend opened his mouth to ask her to wait, but I think he was kind of stunned), and when she came back to ask us what we wanted for our meals, she began to walk away after taking his order but caught herself and asked me, "Would you like anything?"
Yes, I do. That's why I'm sitting at the table.

I ordered my lunch, and also ordered the soda she forgot to ask me if I wanted. She jotted it down and walked off, no apology. My friend raised an eyebrow, and commented to me, "That was awkward." When I asked him if he knew her, he said he didn't, and that he thought it was really weird.
The rest of the lunch was uneventful, except she kept coming back to ask him (not me) how everything was. I was getting a little annoyed, but I just let it go.
Was the waitress rude, and would it have been rude of me to say something?