Margaret Qualley and Jack Antonoff are working together to handle their separation in "the best way that they can" with "love and kindness," a source exclusively tells Page Six. The insider adds that rumors about an alleged infidelity "aren't true," noting that "they've had a beautiful and loving relationship. Sometimes, these things just don't work, and it doesn't need to be for any dramatic reason." News broke of their separation earlier this week after Antonoff notably showed up solo to attend Taylor Swift and Travis Kelce's wedding, with sources telling People that things had been "rocky" for some time. An insider exclusively told Page Six that the estranged couple's marriage fell apart over certain "challenges," with the source saying "Jack could be very particular about how he liked things" and "Margaret didn't always feel like her perspective was being heard or given the same weight." The Grammy winner and the "Maid" star were last seen together on Feb. 1 at the Grammys, but had been dropping clues online of their relationship troubles for months, including Qualley changing her Instagram handle and Bleachers removing the song "Margaret" from their tour setlist. Qualley and Antonoff first sparked relationship speculation in August 2021 and tied the knot in August 2023.