Sweeney keeps her love life pretty private, so details about when or how she met Davino haven’t been revealed. However, the couple first sparked dating rumors in September 2018 when they attended Hulu’s 2018 Emmy Party together. That October, Sweeney and Davino were also photographed at an InStyle and Kate Spade dinner party.
The pair was seen again the following year at a New York Knicks basketball game at Madison Square Garden in October 2019. That December, Sweeney hinted that she and Davino were getting serious while talking to Elite Daily. Although she didn’t specifically mention Davino in her interview, Sweeney appeared to reference the Chicago-based businessman by saying she could see herself permanently moving to the Windy City one day. “It’s like my getaway place,” she said, adding that she has “a friend” there.
Sweeney also made a rare comment about her dating life in a February 2022 interview with Cosmopolitan. “I don’t date people in the spotlight,” she said. “I don’t date actors or musicians or anyone in entertainment because I can just be normal Syd that way and it’s easiest.” The actor added that she has a “great support system” and even hinted that her fame doesn’t get in between her relationship with Davino, saying, “I have people who will battle for me and allow me to be on the pedestal and shine without making me feel like, ‘Oh no, I’m shining too bright and I need to step back.”
When asked about her ideal partner, Sweeney replied, “I look for a best friend. I need to be able to be with someone who I can literally hang out with 24/7 and never get sick of and we laugh every single day.”
After Sweeney was spotted wearing a diamond ring in March 2022, People confirmed that Sweeney and Davino had gotten engaged. In 2023, she and Davino proved they were still going strong by attending the Cannes Film Festival together in May, as well as the Venice Film Festival in September.