Mendes announced her engagement to internet personality Rudy Mancuso on Oct. 25. The couple, who started dating in July 2022, shared a joint Instagram post with three photos of Mancuso's proposal. For the caption, Mendes wrote, "engaged to my best friend," adding the face-holding-back-tears and ring emojis. Three days later, on Oct. 28, Mendes posted a dozen photos from her and Mancuso's engagement party, revealing she hadn't been expecting it.