Since this is a game where players interact intergalactically via letters written by others navigating relationships, I wonder:

What are some of your favorite science fiction books/movies/other media (use those terms as broadly as you'd like) where there are some sci-fi shenanigans going on with deep insight into character emotions?

Some of mine:
> A Memory Called Empire buy Arkady Martine
> A Psalm for the Wild-Built by Beck Chambers (though truthfully, anything written by her)
> Arrival (and further extrapolated, most short stories by Ted Chiang)