Your post doesn't make sense. You like aisle seats, but booked 18A (window). On a 767 there are only two seats on the side, so you have 0 chance of an empty middle seat since there are no middle seats on the side.
At least you had the sense to book a window seat (18A) so you are the one climbing 6 times over the other.
I think OP just really means empty seat next to him. But who really knows.....
