Credit: Bryan Bedder/Getty Images; Lester Cohen/WireImage.com

Brad Pitt, watch your back for...Rosie O'Donnell?

In the midst of a potential split with spouse Kelli Carpenter, O'Donnell let it all hang out in an interview with Howard Stern Monday.

After noting that her struggling relationship isn't marred by sexual problems, she waxed nostalgic to Stern about her long-ago interaction with Angelina Jolie -- before Jolie's marriage to Billy Bob Thornton and current partnership with Pitt.

"She gave me her phone number," O'Donnell recalls.

"We talked on the phone two or three times, but that was that . . .There was a tentative plan to have dinner that never came through." she said.

"I was a little afraid of her. She's scary in a sexual kind of way. I have dreams about her a lot still."

O'Donnell, 47, who wed Carpenter in 2004, confirmed marital problems to USA Today last week. "Kelli and I love each other very much and we are working on our issues. Those are the only words I am ever going to say. Ever."

"We're a family, we remain a family and we're working on the issues," O'Donnell said; the couple have four children: Parker, 14, Chelsea, 12 and Blake, 9, and Vivienne ("Vivi"), 6.