What Jack Antonoff told Taylor Swift wedding guests about Margaret Qualley’s absence

You’re on your own, kid.

Jack Antonoff reportedly blamed his estranged wife Margaret Qualley’s absence from Taylor Swift’s wedding on a “tiff” during their secret separation.

The Bleachers frontman, 42, was overheard telling pals at Friday’s Madison Square Garden ceremony that he’d “had a tiff” with the actress before the event, according to the Daily Mail.

“Jack didn’t want to put up a facade at Taylor’s wedding when they’re having trouble,” an insider told the outlet on Wednesday.

Antonoff’s rep has yet to respond to Page Six’s request for comment.

The songwriter attended Swift and Travis Kelce’s New York City nuptials — and their rehearsal dinner the previous evening — with his sister Rachel Antonoff.

The wedding was a massive, star-studded affair, with more than 1,000 guests present.

Qualley being a no-show set tongues wagging about her and Jack’s romance, especially when TMZ shut down rumors the Golden Globe nominee was too busy on set to attend.

The “Maid” alum, notably, wrapped “King Snake” in June and has yet to start “Possession.”

Qualley also fueled split speculation by changing her Instagram name from Jack’s “Isimo” song and wiping photos of him from her Instagram account.

Jack, meanwhile, cut a song about his partner, whom he wed in August 2023, from his band’s tour set in June.

Page Six confirmed on Wednesday that the duo have called it quits after five years together.

“Jack could be very particular about how he liked things,” a source told us. “He’d often prefer for things to be done the way he thought was best, and Margaret didn’t always feel like her perspective was being heard or given the same weight.”

The insider called communication “a challenge” in their dynamic.

Jack gushed over their romance in an April “Howard Stern Show” interview, saying he decided Qualley was The One “the second” they met at a 2021 party.

Two months later, the Grammy winner told “Today” show viewers he “love[s] being married.”

Jack was still wearing his wedding ring on Wednesday when he was photographed in Brooklyn with Rachel.