It's fascinating how ten years ago DC was trying so hard to reduce Lois' importance to the Superman's myths, but not only the marriage came back stronger in the comics (with a son), the other media (animation, TV, movies) have been treating them as an inseparable duo.
Like, for the the first time ever, they were cast at the same time! (Before, who'd play Clark was announced first and Lois' actress a couple months later.)