Lily Allen felt ‘triggered’ by ideas of husband David Harbour being in New York with one other lady and struggled with their Manhattan life after ‘soul-destroying’ resolution to promote their Cotswolds dream dwelling

Lily Allen has checked into a £8,000-a-week trauma treatment centre in the wake of her split after feeling ‘triggered’ by thoughts of her husband David Harbour being in New York with another woman. 

The singer, 39, called time on her relationship with the Stranger Things star in December after discovering he was using the celebrity dating app Raya.

And it has now been revealed she has struggled with being in the city she called home with the star amid the split. 

A source told The Mail on Sunday that Lily’s mental health deteriorated significantly after she returned from holiday to her marital home in New York last week.

They explained: ‘It was very painful for Lily to return home. David used to be her saviour and now he’s a trigger for her. 

‘Lily settled her kids back into the family home and took them to school for their new term, then flew herself straight to rehab. She went a day earlier than intended as she felt wobbly and desperate to escape.’

The English singer-songwriter chose to relocate to Brooklyn with her children Ethel, 11, and Marnie, 13, after she tied the knot with David in Las Vegas in 2020.  

However Lily had previously given up her dream home in the Cotwolds in a decision she later described as ‘soul-destroying’. 

The star was forced to sell her £4.2 million mansion in the countryside in 2016 to pay off a large tax bill after she was sued by her former tour manager. 

Lily, who was married to her first husband Sam Cooper at the time, revealed last year that she still hopes that house will come back on the market to buy again. 

Speaking on her podcast Miss Me? she confessed: ‘I had a beautiful house, which was my house of dreams in the countryside.

‘I did it up so nice, and it was like my life project, I was very proud of it, it was the place where I was going to raise my children.’

Explaining how she was forced to sell it she continued: ‘It was absolutely soul-destroying, and a real lesson in life. You can think that you have everything all sorted out, and you just absolutely don’t. 

‘You know a sad story, if that wasn’t sad enough, is that every day I still check the housing market to see if that house has come back on sale. I’d love to have that house back.’

After Lily checked into a trauma centre earlier this week, David was seen walking in New York city with Scarlett Johansson. 

The pair have been close friends since they appeared together in the 2021 film Black Widow. He was also pictured puffing on a cigar.

A source told The Mail On Sunday: ‘While David was strolling around New York smoking cigars and looking carefree, you can only imagine how Lily was feeling. Her heartbreak was made worse by being near to him in Brooklyn.’

Lily will spend several weeks at the residential retreat in the US where she is expected to take part in intensive group counselling sessions and one-on-one therapy in which she will be urged to ‘unpack’ her emotions.

Cocooned from the outside world – having surrendered her mobile phone – she will also be encouraged to eat healthily and take walks in the countryside.

On Sunday David was also spotted in the crowd at the Milwaukee Bucks v New York Knicks basketball match at Madison Square Gardens. 

Lily looked to be far from his mind as he was seen smiling and posing with a thumbs up as he sat beside fellow actor Ben Stiller and his wife Christine Taylor. 

The latest chapter in the star’s often troubled life has caused her close-knit friends dismay but they hope that she ‘is now on the road to recovery’.

In last week’s podcast the star heartbreakingly admitted she can’t concentrate on anything apart from the overwhelming pain she is feeling amid the split.

The British singer, 39, bared her soul during her latest Miss Me? podcast episode, which she hosts with friend Miquita Oliver, as she confirmed their separation.

The mother of two detailed the months of agony she has been through while suffering from panic attacks and a lack of focus.

Lily explained how she had tried to attend the podcast’s Christmas lunch but was forced to leave after having an attack.

She told listeners: ‘I know I’ve been talking about it for months but I’ve been spiralling and spiralling. It’s got out of control, I’ve tried.

‘I came to the Miss Me? Christmas lunch and had a panic attack and had to go home and 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 I’m going through. It’s really hard.’