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Lily Allen Sparks David Harbour Engagement Rumors With Instagram Comment

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Lily Allen is playing coy when it comes to the diamond ring she's been sporting.

The 35-year-old British singer has been linked to 45-year-old actor David Harbour since October, and in an Instagram post showing off her abs on Thursday, a follower asked about the shiny ring she was sporting on her ring finger. Allen has actually been photographed wearing the ring since December.

"Um.... engagement ring??????????????" the comment reads.

Allen responded with a joke referencing Brad Pitt's famous line in 1999's Fight Club, when his character says, "The first rule of Fight Club is: You do not talk about Fight Club."

Allen wrote back, "first rule of engagement club .........."

ET has reached out to Allen and Harbour's reps for comment.

Lily Allen comments on her ring.
Instagram

This isn't the first time the couple has sparked rumors that they've taken their relationship to the next level. In March, the Stranger Things star referred to Allen as his "wife" during an Instagram Live session. When a fan asked Allen how many copies she sold of her album, No Shame -- which dropped in June 2018 -- she laughed, guessing, "I don't know, like 5,000?"

"You think you married a pop star? You didn't," she continued, referring to Harbour. "Not that we're married. We're not married. I just want to make sure you know."

But Harbour added fuel to the marriage rumors, interjecting, "But she is my wife, my wife," as Allen followed up with, "We do pretend."

Clearly, the two are serious about one another. Last month, Allen and her two daughters -- 8-year-old Ethel and 7-year-old Marnie -- threw an intimate at-home party for Harbour's birthday, complete with dinosaur-themed cupcakes and an impressive cake baked by Allen.

Meanwhile, at the 2018 Emmys, Harbour talked with ET about officiating a fan's wedding. Watch the video below for more:

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