Sean Penn’s ex, Robin Wright, and her boyfriend, “Orphans” star Ben Foster, walked the red carpet as an official couple for the first time at Sunday’s Lucille Lortel Awards. “They actually ran off the carpet because all the camera flashes overwhelmed them,” says a spy. Also at the event celebrating off-Broadway’s best were Cynthia Nixon, Jake Gyllenhaal and Jon Hamm’s girlfriend, Jennifer Westfeldt, who was dancing backstage with his “Mad Men” co-star John Slattery.