In a remarkably candid InStyle interview – to which the Cougar Town star, 46, arrived minus her wedding ring – Cox admits that her 11-year union with David Arquette has had its ups and downs.
"We've done couples therapy in the past. We're not lazy about our marriage," Cox says in the magazine's August issue, on newsstands Friday. "We have the same arguments we've had for years."
Disagreements are something that exist in every marriage, and Cox says she doesn't expect them to ever be fully resolved. "Some things just never change, and you should realize that the intriguing things you fall in love with will probably become the things that you don't like," she says, "and the very things that you'll be talking about for the rest of your relationship."
Luckily, their domestic issues don't sound all that dramatic, and they have made some changes to suit their lives as a couple. "If we didn't live together, David wouldn't even notice if a lightbulb had burned out!" Cox says. "He collects things; I don't. When we first lived together, I lived with [his] clown paintings, bobbleheads ... I couldn't do that now."
The actress does cop to some fantasy world crushes on Zac Efron and Robert Pattinson, whom she calls "cute." "How old is he? I saw one picture of him and he looked dangerous; I like it," she says of the Twilight star, 24. "That's a really pretty face. I might feel insecure around him."
But her real-life love for Arquette – father of their 6-year-old daughter Coco – goes deeper. "One thing is, I let David be himself and he lets me be myself," Cox says. "You have to make an effort to stay connected, and that's something we work at."