Craig Barritt/Getty

Lily Allenis back from a much needed retreat.

“I did lots of group therapy and some individual therapy.

Allen is rumored to have recently separated fromDavid Harbour, her husband of four years, sources toldPEOPLE.

Lily Allen attends the FENDI 25th Anniversary of the Baguette at Hammerstein Ballroom on September 09, 2022 in New York City

Lily Allen in 2022.Credit:Craig Barritt/Getty

The couple met on the celebrity dating app Raya and weremarried in 2020.

But ultimately, it was for them.”

The song went double platinum in the U.K. and led to a Grammy nomination.

Lily Allen and David Harbour attend the CHANEL Tribeca Festival Artists Dinner at The Odeon on June 10, 2024 in New York City.

Lily Allen and David Harbour in 2024.Sean Zanni/WireImage