It appears Sean "Diddy" Combs has been Cameron Diaz's shoulder to cry on (I'll keep it clean and just call it that) since her most recent split with Alex Rodriguez. A source tells US Weekly that Diaz and Diddy, her off-and-on hookup since 2008, reunited when Combs pursued her during Oscars week. Another source adds: "Since then, when she's single, she'll booty call him." Witnesses say on ...