Jake Gyllenhaal and Jeanne Cadieu have kept their romance on the down-low - but they still seem to be going strong. Us Weekly confirmed the duo's relationship in December 2018 after they were spotted traveling together in London and Greece that summer. While their 16-year age difference may have caused a stir among some fans, the pair weren't fazed. "Jeanne is very mature for her age. She's quirky, smart and loves history, reading; she's a really great and well-rounded person," a source explained. "She and Jake really took things slow, but are now pretty serious.