“You don’t need real-life love to make great art, but what it’s invaluable for is publicity. … Knowing that the dancers on stage also share a bed may add a frisson for the audience, but that’s all about projection rather than the performances themselves. … You didn’t get more electric than the most famous onstage couple, Margot Fonteyn and Rudolf Nureyev, but he was gay and she was 20 years his senior. There have been suggestions they were lovers – but that seems more like fan fiction than fact.”