The Great Healer - S1.E4

In Victorian times, two women meet up, it comes out that they hadn't seen each other for over fifty years, from when they worked together as chorus girls. They have a chat about old times and how their lives have changed, the most notable changes are Kitty's who went from been a working class chorus girl to a titled lady after marring Bertie, who would later become Lord Bodmin. Rosie's changes were more mundane as she just married and became Mrs. Bounce.