Working with your ex is not something people tend to enjoy doing after a breakup — especially when the job involves portraying characters who have to kiss each other on the screen. Camila Mendes knows this situation all too well, as she dated her Riverdale costar Charles Melton on and off from 2018-2021 while filming the hit CW series. Appearing on the Monday, February 19, episode of “Armchair Expert,” the 29-year-old actress opened up to host Dax Shepard about the difficulties she faced due to her off-screen relationship with Melton, 33. “We dated for a year and then broke up for about a year…
