Assuming you're on BA2711 tomorrow? ExpertFlyer is showing most of the ones you can see as blocked (i.e. they are reserved for elite passengers).

Unfortunately when you're on seperate bookings there's no easy way of sitting you together unless you're a GCH in which case you can ring BA and they will sort it manually if they feel like it.

I'd say your best option is to take row 7 as it's the one you can both see, it's a pain I know but I've had the same before when I was silver, there's little can be done in your position.

Hope there are some meals left for you...