This is the official description of aquaman vol 1;
Not married. Clearly johns idea was they married, but someone cut that. There is not reference to marriage, so it is not canon. probably quaman editor works with didio not marriages policy breathing in his neck.A #1 New York Times Best Seller!
The King of the Seven Seas Aquaman returns to his very own ongoing series for the first time in years at the hands of DC Entertainment Chief Creative Office Geoff Johns, who reteams with GREEN LANTERN collaborator artist Ivan Reis! Between proving himself to a world that sees him as a joke, Aquaman and his bride Mera face off against a long buried terror from the depths of the ocean!
DC had many marriages iris/barry, lois and clark, jay garrick and his wife, aquaman and mera, barda/scott free, wally/linda.
die-hard edict? yes it is, animal is far away from being a big name, had his book canceled. this is the only exception exception, that not even aquaman and mera escaped;