Robert “Mutt” Lange

Singer Shania Twain was devastated when she discovered her then-husband, Robert “Mutt” Lange, had been having an affair with Marie-Anne Thiebaud, their family friend and manager of their Swiss estate.

The betrayal led to their divorce, but Shania found an unexpected silver lining. She later married Marie-Anne’s ex-husband, Frédéric Thiebaud, creating one of the most talked-about twists in celebrity relationship drama. The two tied the knot in 2011.