A King and a Queen

_{Be hands holding a knife.
Be a being on two feet, with his heart trembling,
butchering for a king he believes in though he’s never seen.
Be the princess in that stone tower,
crying for that handsome butcher’s plight
(and, as some princess might, she still calls him a knight.)
But the best thing for you would be queen, so be queen.}
A King and a Queen -- Okkervil River

Belethial and Caleb. She's handing him some blood from the heart she has in the box.
They have a weird relationship.