80-year-old Calvin Klein with his boyfriend Kevin Baker

A biography written by Steven Gaines and Sharon Churcher about Calvin was the first to report that their marriage had gone south, with the authors claiming in the book that the designer was bisexual and that the couple was living separate lives. ‘Some intimates see the marriage as a happy compromise,’ the book read. ‘Others, an uneasy truce… Life cannot be easy for either of them.’  The couple officially split up in August 1996 – after nine years of marriage – but remained friends.