Supergirl star Melissa Benoist is ending her marriage to her former Glee co-star Blake Jenner. The 28-year-old actress filed divorce papers on Friday, just two days before the Christmas holiday, citing ?irreconcilable differences,? ET confirms. RELATED: Behind the Scenes of 'Supergirl' With TV Wonder Woman Lynda Carter Benoist and Jenner, 24, wed in March 2015 after getting engaged in the summer of 2013 following a year of dating. They met in 2012 when they were co-stars on Fox?s musical comedy Glee, where Benoist and Jenner played high schoolers Marley and Ryder, respectively.