Shania Twain Opens Up About Ex-Husband’s Affair With Her Best Friend

Shania Twain is getting candid about the 2008 affair her husband, Robert "Mutt" Lange, had with her best friend, Marie-Anne Thiébaud — and revealed she doesn't regret the way her marriage ended.

"I can't say I would be better off [if he hadn't cheated] because I think I learned a lot from all of that. I don't regret it," the 49-year-old singer said in a new interview on Bravo's 'Watch What Happens Live.'

Shania with Andy on 'WWHL' on Wednesday, March 11.

But when the show's host, Andy Cohen, asked what one thing she would like to say to Marie-Anne today, Shania said she'd tell her, "I wish I'd never met you."

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"I think there are just some people in life you would say I wish I hadn't met that person or I would have been better off not knowing that person," she explained.

Shania with her husband, Frédéric, in June 2011.

Following the affair, the star filed for divorce from her spouse — with whom she has a 13-year-old son, Eja — in June 2010 after seven years of marriage. But perhaps the strangest twist in this story is that Shania later tied the knot with Marie-Anne's ex-husband, Frédéric Thiébaud, in 2011!