This was a very surprising thing to find out & shocking. Not that I see anything wrong with people's lifestyle choices but you never know what you will find out about people you don't really know.
http://m.scotsman.com/news/john-maynard-keynes-bisexuality-ballerinas-and-brilliance-at-economics-too-1-1138050
"Yes, yes, he was one of the fathers of modern theoretical macroeconomics, but it cannot be overlooked that Keynes's sex life was pretty wild. His early romantic relationships were almost all with men – his diary lists 50 gay affairs between the ages of 18 and 33, ranging from Bloomsbury Set painter Duncan Grant and writer Lytton Strachey to a boy who operated the lift in a London Tube station. But then he amazed all his friends by falling in love with a 38-year-old Russian ballerina, Lydia Lopokova, right, and marrying her in 1925. It was, it seems, a genuine love match. Robert Skidelsky, Keynes's biographer, says: "Sexual relations certainly developed, and by 1924 Lydia was appreciative of Maynard's 'subtle' sexual technique."