Definition of "coupledom"

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.

2004, Alan Hollinghurst, chapter 6, in The Line of Beauty […], 1st US edition, New York, N.Y.: Bloomsbury Publishing

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

2011 February 13, James MacGowan, “Heart of the City by Ariel Sabar”, in Toronto Star

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.

6 May 2023, Rachel Cooke, “It was ludicrous but also magnificent: the coronation stirred every emotion”, in The Guardian‎