Originally Posted by
catandmouse
That's rather interesting. I was on a 747 with a colleague who was downstairs, whilst I was upstairs. No question of asking for seat swaps, but after the meal he came up to see me, but was asked fairly quickly by the cabin crew to go back downstairs, which he did. Apparently visitors aren't welcome on UD.
Indeed, it's generally not allowed for security reasons. I would have done the same as you but then honestly would have felt pretty uncomfortable afterwards so would probably have seen to it that the woman stayed downstairs, ideally with her lovely husband.