Pippa Middleton did her normal walk to work in London last Thursday, not giving any hint as to the big personal change she's experienced. Pippa Middleton and Alex Loudon broke up, it's been reported, after nearly a year and a half of dating. Many UK papers have speculated that the split occurred, because Alex's established, aristocratic family was not happy with all of the press Pippa's received since her star turn at sister Kate's April 29 wedding to Prince William. Things were further complicated when Pippa was photographed dancing with the equally posh Charlie Astor at the Boodles Boxing Ball last month. It seems Pippa may be reconsidering her schedule of public appearances now, too — she's dropped out of attending the Square Mile Masked Ball on Nov. 25.