Andie MacDowell's daughter locked down her love using "Southern girl etiquette."Margaret Qualley married Jack Antonoff, known for producing some of Taylor Swift's biggest hits, in August 2023. "The Substance" star opened up about the beginning of the couple's romance and the "old-school" traditions she found herself following.Qualley revealed Antonoff said "I love you" first, "obviously.""Im very old-school about stuff like this," she told Cosmopolitan. "I would never put myself out there first. I never text twice. I mean, now were married, and I can text him anything at any time. Were always having a conversation; hes like my human diary. But, before we were together, at the beginning, I would always follow Southern girl etiquette."TAYLOR SWIFT'S INNER CIRCLE AFTER SCANDAL: I DIDNT TRUST ANYONE ANYMORE'Qualley and Antonoff first met in 2021 as the COVID-19 pandemic was ending. The 30-year-old said "falling in love with Jack was the biggest feeling [she'd] ever felt.""We saw each other on a roof, and we just started talking and never stopped," Qualley recalled. "We went on a series of walks throughout the city that summer." And, according to Qualley, "Washington Square Park is the best place to fall in love."The two married Aug. 19, 2023, in New Jersey. The guest list consisted of numerous A-list celebrities, including Swift, Zo Kravitz and Lana Del Rey.MARGARET QUALLEY AND JACK ANTONOFF ARE ENGAGED: REPORTIn her relationship with Jack, Qualley felt "safe and comfortable.""In every other relationship Ive ever been in, I still felt really lonely because I wasnt with my person, and its like I was seeking something," she said. "I dont feel like that anymore. Jack makes me feel safe and comfortable."I spent so many years trying to be someones perfect girl, and that girl changed over and over again," Qualley admitted. "But I cant lie to Jack. I cant be that for him. Hed see through it. So, I just have to be myself. Hes been the person Ive pictured my whole life. And Im not even saying that metaphorically. My first crush was Adam Sandler in Happy Gilmore and Big Daddy, and Ive been looking for that essence my whole life. Im like, Thats Jack."Qualley was "head-over-heels in love right away" with Antonoff, she told Elle UK in February 2024."I had a sure, knowing feeling that he was my husband," the actress added.LIKE WHAT YOURE READING? CLICK HERE FOR MORE ENTERTAINMENT NEWSQualley was raised by her famous parents, actress Andie MacDowell and former model Paul Qualley.The couple divorced in 1999 after 13 years of marriage and five years after welcoming Qualley into the world. The actress was raised by MacDowell in North Carolina.Qualley recalled her experience of being raised by "probably the only Hollywood actress in Asheville.""I grew up always being like, Well, its just normal to me. Shes my mom. So, its my normal life. But also I knew it was weird," Margaret told The Evening Standard in 2023."Its weird. Im really lucky. It was a strange thing, but then I did go to a normal school, [had] normal friends and have a somewhat normal life. Then my mom would go off and do movies, and sometimes Id go with her. And sometimes Id meet, like, Grard Depardieu."CLICK HERE TO SIGN UP FOR THE ENTERTAINMENT NEWSLETTERQualley's found fame after her breakout role in HBO's "The Leftovers" in 2014. She has since earned recognition for roles in "Fosse/Verdon," "Poor Things" and, more recently, "The Substance" and "Happy Gilmore 2."She's been nominated for Golden Globes, SAG Awards, Critics' Choice Awards and Emmy Awards for her work.The "Maid" star also adheres to other old-school traditions in life, not just dating."Cellphones are like cigarettes. Im a big fan of airplane mode," she told Cosmopolitan. "Because opening your phone is also like going to work, you know? I dont have any apps on my phone except Uber, texting and Maps. And thats nice, because then its like, if Im at the grocery store, I dont just pull out my phone. Im just there, listening to peoples conversations."And I feel more immersed in my life," Qualley added. "I have another phone at home that doesnt have cellphone service. It just has Wi-Fi, and I can look at Instagram. We are all definitely too plugged in."