When asked by The Tonight Show host how things were going with Catherine, Michael replied, "Good, I hope. I've been away for a while, but everything should hopefully be on the up and up".
Back in August a representative for the Hollywood couple confirmed that they were taking time apart to "evaluate and work on their marriage".
But Michael went on to say that their separation didn't mean that things were over. "Sometimes people take a little bit of a break, but it doesn't necessarily mean that's the end," he said. "I'm very hopeful".