Jennifer Garner says she and Ben Affleck had been "separated for months" before he was linked to their nanny.
It was claimed that Ben and Christine Ouzounian, who had been hired to care for the couple's children Violet, 10, Seraphina, seven, and Sam, four, had a fling last year leading to his split from Jennifer but she has insisted that Christine had nothing to do with the end of their marriage.
She told Vanity Fair: "Let me just tell you something. We had been separated for months before I ever heard about the nanny. She had nothing to with our decision to divorce. She was not a part of the equation."
However, she added: "Bad judgment? Yes. It's not great for your kids for [a nanny] to disappear from their lives. I have had to have conversations [with my children] about the meaning of scandal."
Despite their split, Jennifer called Ben "the love of my life" but insisted they will not be reconciling.
She said: "I didn't marry a movie star; I married him. And I would go back and remake that decision. I ran down the beach to him, and I would again.
"You can't have these three babies and so much of what we had. He's the love of my life. What am I going to say about that? He's the most brilliant person in any room, the most charismatic, the most generous.
"When his sun shines on you, you feel it. But when the sun is shining elsewhere, it's cold. He can cast quite a shadow.
"The main thing is these kids - and we're completely in line with what we hope for them. Sure, I lost a dream of dancing with my husband at my daughter's wedding. But you should see their faces when he walks through the door. And if you see your kids love someone so purely and wholly, then you're going to be friends with that person."
- BANG! Showbiz