coupledom

noun

1. (uncountable, usually)The world or sphere of romantic couples.

   “The ads were already showing as he clambered along and in their patchy glare he loomed and ducked and apologized, and was a clumsy intruder in a world of snuggling coupledom.”

2. (uncountable, usually)The state of being a romantic couple.

   “More coffee is consumed, a movie date is arranged, coupledom achieved and, naturally, nuptials performed.”

   “Their hard-won, second-chance coupledom had never been to me more gently touching, every bit as much a symbol of 21st-century Britain as the sound of a gospel choir, or a Hindu prime minister reading from the Epistle to the Colossians.”