I'm looking for a story, Regency, where Elizabeth and Darcy are at Pemberley with a whole bunch of people including - of course - Caroline Bingley. Elizabeth and Darcy are married, but nobody - are only a few people - knows. Caroline treats Elizabeth with disdain, as always, and then one day she takes place at the head of the (breakfast?) table, normally the place of the mistress of the house (but Elizabeth doesn't sit there because nobody knows they are married).
Does anyone know what story this is?