The 51-year-old "Cougar Town" star, who dined at new restaurant ROKU Sunset in West Hollywood with her daughter Coco and a friend, was is in great spirits, reported People magazine.
Having grilled chicken, filet, rice and sipping on wine, the Cox "was in the best mood ever with her daughter and catching up with her friend. There were lots of laughs all around. It was an upbeat night," an onlooker said.
Cox and the Snow Patrol guitarist had been "having problems for a long time.