It is unknown exactly when Barnet started dating his "Love Hard" costar Mikaela Hoover, but they made their Instagram debut as a couple in April 2021 when Hoover shared a polaroid picture of them together for Barnet's birthday, so we can assume it was sometime before then. "You make me happy. Happy Birthday Angel," the actress wrote in the caption.
By May 2021, Barnet and Hoover took a trip to the Global Wildlife Center, which both documented on Instagram. In the pictures, the happy couple are seen feeding giraffes and camels from a tourist truck.
In July 2021, the "Never Have I Ever" actor shared some birthday love for Hoover in a similar fashion, and posted the same polaroid picture on Instagram for her birthday, writing, "Happy Birthday, love. Today is for you."
For the most part, the pair kept a low profile throughout their relationship and didn't share a ton about their romantic adventures on social media.
In August 2021, the couple made their red carpet debut for the premiere of "The Suicide Squad," in which Hoover starred as Camilla. Both Barnet and Hoover posted pictures from the event on Instagram, with Barnet writing in part, "A big thank you and congratulations to @jamesgunn and the entire cast, including @mikaela on such an awesome film!"
The couple's social media posts dwindled after "The Suicide Squad" premiere. Their last photo together was posted on Instagram by Hoover in October 2021, and shows the pair at an Alanis Morissette concert. While it is unknown when the couple broke up, it appears to have been sometime around or after October, as both stopped posting pictures with one another.