Fred Montana / Splash News 1 / 7
Fred Montana / Splash News 1 / 7

David Arquette believed the rumors, too.

In his revealing Thursday interview on "The Oprah Winfrey Show" -- his first sit-down since leaving rehab last month -- the actor, 39, denied that he cheated on Courteney Cox, but confided that he suspected she had strayed.

Although the couple announced their separation in September 2010, Cox, 46, began discussing a potential split last summer. As the "Scream 4" actor has previously said, Cox gave him a motorcycle for their 11th wedding anniversary and, in an ultimatum, said, "I don't want to be your mother anymore."

Shortly after that, Arquette explained to Oprah Winfrey, "She came down really depressed one day, and was like, 'I'm really just not happy.'" His reaction?

"I felt really sort of abandoned at that point," Arquette admitted.

"I was angry with ... the dynamic of our relationship," says the star, who struggled with addiction all his life. "I was angry with my wife."

Further angering him: "There were tabloid stories coming out about her and someone on her show having, you know, an affair."

When Cox brought up the adultery rumors herself, "I thought she was having an affair with someone. Nobody would've said something like that if she weren't," Arquette said. (He now says he knows those stories weren't true.)

Also at issue: Cox's million-dollar success on "Friends." "She was on this incredibly successful show, so she made more money than me," said Arquette, who talked it out in therapy. "I was sort of always in her shadow. And I'd held all this bitterness."

Arquette also explained incriminating pictures taken of him with another woman last year. After shooting "Scream 4" in summer 2010, the spouses were secretly separated. "There was a period of time there that nobody knew about it," Arquette says. "I would go out and I was available again."

A month into that separation, he said, "I met a girl. There was a waitress at a place. ... It wasn't [an affair]. ...[Courteney and I] had an understanding. I was completely faithful."

Is there a chance for a reconciliation? "I love Courteney," Arquette proclaimed. "I don't know right now. I want us to be the best people we can be. ... I want her to be happy, and if me even being the best person I can be doesn't make her happy in a partner -- like, who she needs, whatever she's looking for -- that's still to be answered."

He added, "I know that I'll be with her for my whole life. And we have an amazing family together and we're really great parents together."

How did Arquette explain his rehab stay to their 6-year-old daughter Coco?

"I told her at first I had to go away to a camp, so maybe that part wasn't honest, but it kind of was," he says. When his little girl visited him at rehab, he told her, "I'm here to learn how to be a better person, but I'm also here so that I don't drink anymore, because I've been drinking a lot."

Coco, he said, gave a big smile.


Read about David checking out of rehab

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