Believe it or not, Diana and Camilla used to be good friends before they became public rivals. When Diana first began dating Charles in 1980, the two were often guests at Bolehyde Manor in Wiltshire, the country home Camilla shared with Andrew. Before the royal engagement was announced, Camilla even helped Diana navigate one of her first experiences with the press at the 1980 Ludlow Races, where both women watched Charles compete. It wasn't long after their engagement, however, that Diana became distrustful of her new friend.