Royal relationships are strange things, especially when "friends" leak details to the press. The Telegraph reports that Prince Harry will likely get back together with Chelsy Davy. Evidently, the two have been messaging each other on Facebook and will meet up this weekend for Harry's 25th birthday party. An acquaintance of Harry's thinks they'll give it "one last shot" even though Davy's been "seeing other guys." Although they had been seeing each other for nearly five years, Davy first appeared formally as Harry's girlfriend at the May 2008 wedding of royal cousin Peter Phillips. She also attended Prince Charles' 60th birthday bash at the end of last year, when she let fellow guests know she was uncertain about her future with Harry.