PHOTOS & VIDEO: David Arquette & Courteney Cox -- All Smiles & No Screams At Movie Premiere

As RadarOnline.com previously reported, Arquette said on Monday's On Air with Ryan Seacrest that he and Cox were moving toward their separation while shooting the fourth film in the Scream franchise last summer, admitting that "it was time for us to ask some questions."

Arquette said, "For me, I used the separation in a bad way to act out and shake my world up, ‘cause I was heartbroken and I didn't deal with it properly... I dealt with it in the way I had to, because I believe in learning from my mistakes.

"I went where I had to go to come back, and look at myself and look at my life," said Arquette, who entered into a rehab facility January 2, prodded to straighten up after an intervention by Cox and his sister Patricia.

Arquette also diffused the tension over about Cox's recent trip to St. Barth's with their daughter Coco and her hunky Cougar Town co-star, Josh Hopkins, saying there was nothing shady going on, despite tabloid reports to the contrary.

"We're best friends, we're not together, we're still separated... these tabloids make it like there's some sort of scandal going on -- there's no scandal!”

Arquette reinforced his positive sentiments toward Cox in an appearance on Jimmy Kimmel Live! Monday.

"We love each other, we have so much fun together you know, I love acting opposite her. Scream was a major part of my life, we met on the first one, I lost my parents during the second one, we got married on the third one, now we have a kid," he said. "We're best friends -- we're gonna be a family no matter what happens."