Where they met: "Midnight in the Switchgrass"
After her split from Green, Fox started working on the film "Midnight in the Switchgrass," where she met Machine Gun Kelly in March 2020. Fox's relationship with Green was still in limbo (publicly) at the time, but by May 2020, a source close to Fox told E! News that, "She is separated from Brian Austin Green, and they are taking time apart as a couple. She has something going on with Machine Gun Kelly that she is excited about." The two were officially labeled as a couple in June 2020, and have since been known for packing on PDA in public and collaborating together in music videos.
MGK proposed to Fox in January 2022 after nearly two years of dating, but fans noticed things went sour during Super Bowl weekend in February 2023 after Fox deleted pictures of MGK and unfollowed the musician on Instagram. As of March 2023, a source revealed to Us Weekly, "Megan and MGK are currently on a break but are still in contact. They are very hot and cold."