Liberty Ross talks about estranged husband Rupert Sanders' affair with Kristen Stewart.(Reuters)
Liberty Ross talks about estranged husband Rupert Sanders' affair with Kristen Stewart.(Reuters)

Model/actress Liberty Ross has finally opened up about estranged husband Rupert Sanders' affair with Kristen Stewart.

Last year in July, Sanders and Stewart, who worked together on Snow White And The Huntsman, were photographed kissing in the Hollywood hills. In the film, Stewart played Snow White while Ross was cast as her mother.

During an interview with Vanity Fair's Evgenia Peretz, the 35-year-old mother-of-two detailed about the difficult phase she was going through.

"It was horrible," she said, "It was really the worst, really the worst."

"I have no words to describe what we went through," Ross added. "But I think, for me, something always has to completely die for there to be a rebirth. And, for me, I feel like I'm going through a rebirth."

Ross revealed that Sanders admitted he was cheating with Stewart, 20 hours before the scandalous pictures appeared in Us Weekly and later went viral through the internet.

"I just visualised [being] this sort of Masai warrior. I was just going to stand very still and very strong, and just let it all roll past me. I tried to keep as far away from it as I could and to understand that this is my family and it's the most precious thing to me," she said.

Ross filed for divorce in January, and has reportedly been dating co-founder of Interscope Records, Jimmy Iovine.