'Stranger Things' star David Harbour furious as Lily Allen moves on with new man

David Harbour is said to be struggling to move on after his split from Lily Allen.

Best known for her hit Smile, Allen has been linked to Jonah Freud since late 2025. In recent months they have reportedly grew closer.

However, insiders claim that Harbour, famously known for his role in Stranger Things has been "burning up with jealousy."

"He's grilling mutual friends for info. Lily says it's a classic case of him wanting what he can't have now that she's moved on," an insider told Radar Online.

David Harbour and Lily Allen, who tied the knot in September 2020, got separated in early 2025. Notably, they're yet to finalize their divorce.

The source said, "It took a lot of therapy for Lily to get over David."

"Now she's not looking back," they added.

Moreover, insiders claim that Jonah Freud is an upgrade for Lily Allen from David Harbour. "Lily says Jonah is a lot more mature than David ever was," the source said.

They went on to add, "When they got together, it was just supposed to be a bit of fun, but they haven't stopped having fun."

It is pertinent to mention that Allen and Freud also enjoyed a romantic getaway to Rome earlier this year.