Prince William, Kate Middleton, Meghan Markle and Prince Harry show their love in small but sweet ways, one of which is by calling their respective partner by a special nickname or term of endearment.Prince Harry and Meghan Markle, who are getting married on May 19 at St. George's Chapel at Windsor Castle, have nicknames for each other. According to Gina Nelthorpe-Crowne, the "Suits" star affe