Although they didn't play love interests in Tall Girl, the costars seemingly made a connection. The pair supposedly started dating in October 2019, with them going as the iconic denim-clad Britney Spears/Justin Timberlake for Halloween. They were also caught cozying up at a 2020 Golden Globes party, where Sabrina's sister Sarah captured some pics of the duo. Since Sabrina has been known to remove pictures of her exes from her social media, fans have been speculating that they are no longer together as she's deleted a handful of pictures of them together. Griffin also hasn't posted about Sabrina since January 2020.