Entertainment TV Justin Hartley's Girlfriend Wishes the 'This Is Us' Star a Happy Birthday: 'Lights Up My Sky' Sofia Pernas and the actor made their relationship Instagram official on New Year's Eve By Cher Updated on January 29, 2021 10:58 PM Share Tweet Pin Email Justin Hartley. Photo: Sofia pernas/instagram Sofia Pernas is wishing Justin Hartley a happy birthday. The actress, 31, shared a sweet photo of the This Is Us star on Instagram Friday in celebration of Hartley's 44th trip around the sun. "Celebrating this man with my fav screen grab. That smile!!! Lights up my sky. Happy Birthday, حبيبي ❤️" Pernas wrote in the caption for the photo, in which Hartley smiles widely for the camera. After a source confirmed to PEOPLE in June that the two actors had been dating "for several weeks," Pernas and Hartley made their relationship Instagram official on New Year's Eve. Sofia Pernas, Justin Hartley. Sofia pernas/instagram Justin Hartley Goes Instagram Official with Sofia Pernas on New Year's Eve: 'Bring on 2021!' "Sayonara 2020, it's been real. Happy New Year from our quarantine den to yours ❤️" Pernas wrote on Instagram for the holiday, sharing a selfie of the couple. On his own Instagram, Hartley shared a black-and-white photo of the duo smiling and dressed up for the occasion. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. "Last minutes of 2020 here in LA. Bring on 2021! Happy New Year!" he wrote in the caption. In October, Hartley said that he was "really happy with where I am." Sofia Pernas, Justin Hartley. Sofia pernas/instagram Justin Hartley Says He's 'Happy with His Personal Life' Nearly 1 Year After Chrishell Stause Divorce "I'm happy with my career. I'm happy with my personal life," he said on Radio Andy, adding that while he doesn't necessarily mind attention on his personal life, he doesn't want to feed into it. "If they're getting entertainment from that, I think it sort of comes with the territory, but I've also sort of always had this view that I will have a public life, but I will be very private about my personal affairs," he said at the time. Hartley filed for divorce from Chrishell Stause in November 2019 after two years of marriage. In September last year, Stause, 39, told PEOPLE that she was ready to start dating again. The Selling Sunset star is now dating Dancing with the Stars pro Keo Motsepe.