Thanks for the thoughts everyone!

This was asked somewhere above... my preference is aisle and her preference is window, so they have honoured mine during the shuffle but clearly not hers as she was in the middle.

There was some relief this morning as when I checked the seat map 1G was available so I have put my partner in that seat. We're seperated by the aisle and we'll both be staring at strangers through the divider, but it's better than it was.
It does seem, based on a lot I've read in the last 24 hours, that 1K is often held as a crew rest seat or for Emerald status passengers exclusively, I'm keeping my fingers crossed that it will either show up as available at checkin or the purser will be sympathetic and let us use 1K and use 1G for the crew rest seat, as it also has un-restricted aisle access.