Marc Jacobs celebrated his Lifetime Achievement award at the CFDA gala with an after-party at the Monkey Bar, holding court with business partner Robert Duffy and ex-boyfriend Lorenzo Martone. Also celebrating with him were Michael Kors, “Twilight” star Ashley Greene, shoe designer Brian Atwood, Jacobs’ muse Sofia Coppola, Chloe Sevigny, Kirsten Dunst with her boyfriend, musician Jason Boesel, Victoria’s Secret model Alessandra Ambrosio and InStyle’s Hal Rubenstein, who earned CFDA’s Founders Award. Page Six