The 69-year-old actor and Zeta-Jones, who have been married for more than 13 years and have two children together, have been spotted together enjoying dinner dates and attending red carpet events in recent weeks, reported People magazine.
And in an interview to Gayle King for Entertainment Tonight, Douglas revealed that he has learned not to take things for granted.
"We're very close and everything is going great," he told King while promoting his new movie 'And So It Goes'.
"You don't take love for granted.Sometimes we spend more efforts with people that are strangers in terms of making an impression than the person that's closest to us. And you just gotta remember not to take for granted that person that's closest to you," said the actor.