After her split from Will, Kate started to step out for more social events, like this book launch she attended with her sister, Pippa Middleton, in May 2007. Her frequent appearances proved that she was not content with sitting at home moping about her split. However, despite Kate's sudden openness with being photographed, she made a point to shy away from the press and didn't give out any details about the couple's breakup. Even if Kate was hurt about being dumped (which she has admitted she was), she was still going to remain a good ally to William and protect what they once had. Her discretion probably proved to the prince that she was a woman he needed to work hard to keep.
Keeping It Happy and Classy: Kate