OK Sierra, I'll try to give you a serious answer, because it is in fact a well known "problem" for both pax and FA's.
First off, i work the double aisle ac, but the situation is identical, as we tend to serve stuff in both aisles at the same time.
- Why do we crawl along the aisles? Because we do in fact have to execute quite a few physical actions in serving each passenger their food and drink. Add to that the pax who asks us to list all the items on our bar list, and those to whom we have to repeat the same question three times 'cause he/she insists on wearing the earphones at all times. Add also the fact that we do try to give each and every pax a bit of personal attention, even if it's not more than a brief eye-contact, and it all adds up to "crawling".
- It's not that we maliciously do not see you, we're trying to ignore you for just a wee bit. Because during each and every service there is a number of pax that decide to go to the loo, and if we move our trolleys out of the way for each of them, that results in an even slower service to the rest of the pax. Who then complain about our snail's pace!
- The reason we ask you to sit in the spare seat is so we can move the cart past you without crushing your pelvic bone or upsetting the bottles on top of the trolley.
I fly regularly as a pax as well, and have found that it's not all that hard. I simply ask the crew if I can squeeze past, instead of standing behind them, breathing in their necks. Now I'm skinny enough to do that, but so are you probably!
I hope you believe me Sierra, when I say that the large majority of FA's feel that the main aim of their job is to ensure a pleasant flight for all passengers. And that we work hard to reach that goal. It's just that often the interest of the individual pax goes against the interest of the rest of the traveller's. And thus we're involved in a continuous balancing act, and are never able to completely satisfy everybody.
But by Jove, we try!