Shania Twain and her husband, Frédéric Thiébaud took an unusual route to fall in love.br 54-year-old Twain told the story of how they ended up together in an interview with AARP The Magazine.br Twain's then-husband, Robert John "Mutt" Lange, had an affair with Thiébaud's then-wife, Marie-Anne Thiébaud.br CNN reports that tat the time of the affair, Twain and Lange had been married for 14 years.