Well, we know at least one way they're compatible:
An Indiana woman who made a promise to donate one of her kidneys to a stranger has married him three years after his successful transplant surgery.
Chelsea Clair and Kyle Froelich met at a car show in 2009, when she was 22 and he was 19. A family friend had told her that he needed a kidney transplant from a family friend, and she offered to help.
I can see some interesting fights, though.
HIM: You're tearing my heart out!
HER: Well, call us even.