Bombshell claim in Lily Allen, David Harbour split: ‘Three-year affair’

Just months after news of Lily Allen and David Harbour’s split broke, a bombshell new claim has emerged about the cause.

Lily Allen is said to have been left devastated after claims her husband David Harbour “had a three-year affair” during the time of their marriage.

The Smile pop star, 39, split from Stranger Things actor David, 49, back in December, reports The Sun.

The pair, who got married five years ago in a whirlwind Las Vegas ceremony, had been living virtually separate lives for months.

In January, Lily was left “in agony” after learning the American Netflix star had an active profile on celebrity dating app Raya.

Yet according to MailOnline, the London-based singer has now been dealt a double blow after her spouse allegedly cheated on her with a costume designer during their time together.

A source told the publication of the alleged infidelity and said: “David cheated on Lily.”

Talking of the supposed mystery female, who they alleged he was involved with for three years, the source added: “They met on a movie they did together.

“They weren’t very secretive about their relationship.”

They added: “David flew her to Atlanta while he shot Stranger Things to keep him company.”

The Sun has gone to Lily and David’s reps for comment.

Allen and Harbour tied the knot in Las Vegas five years ago. Picture: Instagram

David bought a house in Atlanta last year for a better commute to the Stranger Things set.

Lily had enrolled her two daughters into a school in New York during their marriage, yet is said to be returning the children – who she shares with ex husband Sam Cooper – to a new school in London.

Sad split

Following her marriage breakdown, Lily checked into a $20,000 a week clinic in America as she was said to be in ‘emotional turmoil’ and be ‘highly medicated’ on antidepressants.

It came after she told how she was “taking a break” amid her relationship breakdown.

The mum of two admitted she had suffered crippling panic attacks sparked by her heartbreak so was heading off to deal with her “pain.”

Allegations of infidelity have now surfaced. Picture: Rich Fury/Getty Images

Speaking about her emotions on her Miss Me podcast, Lily admitted to her podcast co-star and best friend Miquita Oliver: “I’m finding it really hard to be interested in anything. I’m really not in a good place.

“I know I’ve been talking about it for months but I’ve been spiralling and spiralling and spiralling and it’s got out of control.

“I came to the Miss Me Christmas lunch and had a panic attack and had to go home. I went to see something at the theatre the other night with my friends Carla and Claire and I had to leave at half time.

“I can’t concentrate on anything except the pain that I’m going through.”

Last month, it was reported that David is dating 27-year-old model Ellie Fallon, who is 22 years younger than the Hellboy star.

Following the reveal, The Sun exclusively reported how Lily had savaged the bedroom abilities of her exes.

Clearly choosing to put herself first and take solace in some me-time, the Not Fair singer then opted for a boob job in the aftermath of her heartache.

This article originally appeared in The Sun and was reproduced with permission.

Originally published as Bombshell claim in Lily Allen, David Harbour split: ‘Three-year affair’