While her marriage to David Arquette has been going through a very public meltdown, Courteney Cox has been putting on a brave face, her Cougar Town co-star Josh Hopkins tells People magazine.

“If we weren’t friends and she didn’t confide in me I wouldn’t have any idea that anything was wrong,” he says, adding that the hardest part of the public attention has been Cox’s daughter, Coco, noticing.

“The day that the news of the separation broke, there were paparazzi outside of their house, and they were taking pictures when Courteney took Coco to school,” Hopkins says. “Coco sees these things, because that’s not a normal thing in any respect and she is a precocious child.”