This is from Feynman’s book (his wife had TB too), and I thought it so apt for us, right now
There is a third thing you will be interested in.
I love you.
You are a strong and beautiful woman.
You are not always as strong as other times, but it rises and falls like the flow of a mountain stream.
I feel I am a reservoir for your strength — without you I would be empty and weak like I was before I knew you — but your moments of strength make me strong and thus I am able to comfort you with your strength when your steam is low.