Music producer Jack Antonoff and actress Margaret Qualley have reportedly separated, just months before their third wedding anniversary. An insider told People on July 8 that the couple's relationship had been "rocky" for some time and they were "trying to figure things out."
Qualley has also made several changes on social media that appear to signal the split. She reportedly changed her Instagram handle from @isimostar to @sarahmargaretqualley23. The previous handles referenced Antonoff's song "Isimo." While she has since changed it, she reportedly deleted photos of herself and Antonoff from their wedding day and other shared moments, though one photo from February 2025 remains.
The couple was last seen together in February at the 2026 Grammy Awards, where they entered the venue hand-in-hand. They did not pose on the red carpet but appeared to be in good spirits inside the event.
Further fueling speculation, Qualley did not attend the wedding festivities for Taylor Swift and Travis Kelce on July 3. Antonoff, a frequent collaborator with Swift, attended with his sister, Rachel. Qualley's absence was reportedly due to her filming schedule for the horror film "King Snake," though other reports placed her in New York City with her dog.
Additionally, fans noted that a song titled "Margaret," by Lana Del Rey featuring The Bleachers and inspired by the couple's relationship, was removed from The Bleachers' setlist for their "Shadow of the City" tour in June. The song is from Del Rey's 2023 album "Did You Know That There's a Tunnel Under Ocean Blvd."
Despite the reported separation, Antonoff and Qualley still follow each other on Instagram.