Adding credence to the claim was Furness' friend Amanda de Cadenet, who commented on the same post: "You are on point with this one. My beloved friend Deb is about to have her glow up any moment fyi!"

It was in March 2020 just as COVID shut down the world when the Australian 56-year-old and the Georgia-born, Michigan-raised 49-year-old first began workshopping Jerry Zaks' Broadway revival of the 1957 musical.

Jackman and Sutton took on the roles of Harold Hill and Marian Paroo in The Music Man, which ran from February 2022 to January 2023 at the Winter Garden Theatre in Manhattan.

"Sutton and Hugh's relationship is the reason Hugh and Deb [separated],' a source close to Foster revealed.

"A lot of people on Broadway knew, and we kept it quiet because both of them are so nice and great people. Everyone respected their privacy. But there was an affair and overlap. They are really happy now."