Amelia Hamlin and Nicolai Marciano's relationship blossomed only recently. "It's pretty recent in the last month," a source exclusively tells Us Weekly. "They run in the same fashion circles. It's new, but they are excited about it." Us reached out to reps for Hamlin and Marciano for comment. Hamlin, 24, and Marciano, 30, went public with their romance by making their red carpet debut at the GQ Men of the Year party on November 13. Lisa Rinna and Harry Hamlin's youngest daughter gushed about the heir to the Guess Inc. clothing empire in an interview with Entertainment Tonight, calling Marciano "my man." Lisa Rinna Calls Daughter Amelia's Daily Front Row Honor 'Mind Blowing' "He's so cute. Look at him! Oh, my God. He's so good. I love him so much," Amelia said. The model added that she and Nicolai, who is the son of fashion designer and Guess Inc. cofounder Paul Marciano, have known each other since childhood, when he was a classmate of her sister, Delilah Belle Hamlin. "I've known him for, like, 15 years maybe now," Amelia said. "He was on the bus to middle school with my sister, so I've just known him. We've known each other for years growing up in L.A., and it just worked out in divine timing like everything does in life." Amelia continued, "My first time being on a carpet with someone who I love very dearly, so this is a big special moment. We're honored to be in Haider [Ackermann], both of our favorite designer ever. We were like, 'What's the craziest dream we can do together? Maybe we can do Tom Ford.'" Nicolai Marciano, Amelia Hamlin Presley Ann/Getty Images for Frame When asked if she was taking any "next steps" in her relationship, Amelia responded, "For the first time ever, I am - and that's all I can say." Days after the GQ event, Nicolai accompanied Amelia to a party celebrating her collaboration with FRAME at Chateau Marmont in West Hollywood on Wednesday, November 19. Delilah, 27, and Rinna, 62, were also in attendance at the event. One day before the event, Amelia took to her Instagram Story to tease that Nicolai helped pick out her outfit for the party, which included a fur coat and a pink Miu Miu purse. "My boyfriend styled me lol," she wrote over a photo of herself sporting the items. Amelia Gray Hamlin Prepped for Her Met Gala Debut 'Like the Olympics' In previous years, Amelia has been linked to Mercer Wiederhorn. However, perhaps her most high-profile romance was with Kourtney Kardashian's ex, Scott Disick, who is 18 years her senior. The two were linked from November 2020 to September 2021. "Amelia was the one who ended things," a source exclusively told Us at the time, while a second insider said, "They're both taking it in stride." Months after the split, Amelia took to Instagram to reflect on her year. "2021... the year of the bleached brow & dreams coming true," she wrote in December 2021. "The year that i completely lost my sense of self ... not knowing that i would reclaim it even more authentically. ... Thank u 2021 ... thank you to everyone that made my dreams come true ... u know who u r!!! I LOVE U!!!!!"