It’s been nearly four years since Pete Wentz and Ashlee Simpson Ross decided to end their marriage , and now, the Fall Out Boy bassist is ready to reveal why they weren’t meant to be after all. Wentz, 35, spoke candidly about the demise of their relationship on Howard Stern’s Sirius XM radio show Tuesday. Stern asked, “Did you think you would be married forever or did you know it was going south? The rocker replied, “I thought it was forever. My parents have been married, I think, 35 years.