Sex And The City writer Candace Bushnell is reportedly at war with former best friend DARREN STAR, after he sold a TV show based on one of her novels to a TV network without telling her. Star, who produced the hit TV adaptation of Bushnell's SATC book, was asked by the author to also turn her novel Lipstick Jungle into another hit television series and wanted to air the project on US network NBC. But when the author's agents couldn't reach an agreement with Star he created his own version of the pilot, changed the name to Cashmere Mafia and sold it to rivals ABC. A source tells gossip column PageSix, "Candace is hurt and upset by Darren's betrayal. She was shocked. He was one of her best friends." The pilot episode of the TV adaptation of Lipstick Jungle, starring Brooke Shields, will debut on NBC later this year (07).