Despite the intense interest, Aniston, 41, was simply dining with an old friend, actor Chris Gartin, 42, who is the soon-to-be ex-husband of event planner Jo Gartin, a close friend of Courteney Cox and David Arquette's.
"Chris and Jennifer have been friends for many years," Aniston's rep tells PEOPLE. "She has had dinner with him dozens and dozens of times."
The pair arrived and left together, but "they're definitely just friends," seconds another source. Of the romance rumors: "This is just silly."