The 13-year friendship between TV producer Darren Star and author Candace Bushnell, who previously had partnered on Sex and the City, has hit the skids, now that each party has a similarly themed series being eyed for the fall TV season. According to the New York Post's Page Six, Bushnell approached Star in 2005 to turn her Lipstick Jungle - about a trio of high-powered New York City women - into an NBC series, but the pair's respective peeps couldn't reach an agreement. Flash-forward to Bushnell phoning Star with the news that NBC had greenlit Jungle's pilot, only to have him tell her that his Cashmere Mafia - a pilot concerning four successful female executives - had a potential home at ABC. While one source tells the Post, "Candace is very hurt and upset by Darren's betrayal," another claims, "There is no truth" to the story.