Liam Hemsworth and Gabriella Brooks's Relationship Timeline Is Mysterious but Adorable

After two years of dating, Hemsworth and Brooks finally made their romance Instagram official by posting a photo of them at the Gold Dinner 2021 in Australia — which also happened to be their first joint public appearance as a couple. The pair were photographed with Hemsworth's brother Chris; Chris's wife, Pataky; and Matt Damon's wife, Luciana Barroso. "Fantastic night raising much needed funds and awareness for one of the most important and challenging issues, children's mental health," Hemsworth captioned his post. "Thank you @itsmondotcom for hosting the evening and all you do for the Sydney children's hospital @sydney_kids #golddinner."