The Hollywood yummy mummy, Courtney Cox, is not usually the one whose love life is the focus of public attention because of her BFF Jennifer Aniston. In the upcoming issue of InStyle, Courtney opens up about her marriage to David Arquette.

Cox was remarkably candid in the interview, arriving without her wedding ring, the Cougar Town star admits that her 11-year marriage has had its ups and downs. She explains, “We’ve done couples therapy in the past. We’re not lazy about our marriage,” continuing to say, “We have the same arguments we’ve had for years.”

The 46-year-old believes disagreements are something that exist in all marriages and she doesn’t have unrealistic expectations they will all ever be 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, and the very things that you’ll be talking about for the rest of your relationship.”

Fortunatly, the Cox-Arquette marriage doesn’t seem all too dramatic just realistic, she says, “If we didn’t live together, David wouldn’t even notice if a light bulb had burned out! … He collects things; I don’t. When we first lived together, I lived with his clown paintings, bobbleheads … I couldn’t do that now.”

Courtney admits to having little Hollywood crushes on Zac Efron and Robert Pattison, 24, she admits, “That’s a really pretty face. I might feel insecure around him.” But in reality, her real love is Arquette, “One thing is, I let David be himself and he lets me be myself,” adding, “You have to make an effort to stay connected, and that’s something we work at.”

Jennifer Aniston reportedly flew several famous friends, including Gerard Butler, her hunky co-star in ‘The Bounty Hunter,’ to Los Cabos, Mexico to celebrate her upcoming birthday.

Aniston, who turns 41 on Feb. 11, retreated to a Los Cabos resort on Thursday night with pals including Butler, Courteney Cox, her husband David Arquette, and Sheryl Crow (who also celebrates a Feb. 11 b-day). Apparently the A-list group is staying in a waterfront villa.

David Arquette is kicking off The Cheesecake Factory and Feeding America’s Drive Out Hunger Tour with a visit to the set of “Scrubs” and the set of “Cougar Town” to visit his wife, Courteney Cox.

“I wanted to come see my wife on the ‘Cougar Town’ set,” David tells ET. “One of the creators of her show is also the creator of ‘Scrubs,’ Bill Lawrence, so he brought them all together and it’s just been great — everybody came out, brought some cans to Feed America.”

“This whole campaign started because The Cheesecake Factory came up with the great idea to drive out hunger,” explains David, who volunteers at the Feeding America charity. “They are going to 30 cities in 30 days to really put an emphasis on Hunger Action Awareness month in September.”

David Arquette is going to live in a box. For two days. For charity.

The actor is going to stay in a Plexiglas (I think that means plastic?) box above the Madison Square Garden marquee for two days next week. However, he won’t be in there all day. He’ll be inside for about eight hours each day. His stay will earn $250,000 for the charity Feeding America.

Donations will be given at Madison Square Garden or online or through text messages. If anyone’s in New York next Tuesday and Wednesday, make sure to stop by and wave hello.

Good for David Arquette. We always need actors doing crazy stuff for charity. If David Blaine had raised money every time he has sat on ice or submerged himself in water we might have rid the world of world hunger by now.