"I do see Mutt... and I do feel bad that he's getting exposed more than he'd like to through this, but, y'know, he's gotta take some responsibility." Shania Twain feels bad for her reclusive ex-husband, Mutt Lange, as she reveals all about the end of their marriage in new memoir From This Moment On. The music mogul dumped Twain for her assistant and best friend Marie-Anne Thiebaud.