Are Scarlett Johansson and Josh Hartnett back on? The recently-split couple were spotted getting cozy at a TriBeCa restaurant on Friday night. "They had a meal and got progressively cozier as the night went on," said a fellow diner. "Then they started to make out in full view of the restaurant at their table and didn't really care who saw." Witnesses were disappointed to report, however, that Hartnett left alone. "He sort of snuck off and ran to the elevator without saying goodbye," said the source.source