Two months after he was caught using a celebrity dating app while still married to Lily Allen, David Harbour has a new girlfriend.

The Mail on Sunday can reveal that the 49-year-old Hollywood actor is dating Ellie Fallon, an aspiring model and actress 22 years younger than him.

The Stranger Things star is thought to have known Ellie, who has just turned 27, for several months. It was Ellie who accompanied him on his New Year trip to India, where he was spotted by fans with a ‘mystery woman’, according to an insider.

Friends say that Lily, 39, is aware of the romance and is ‘very upset’ after seeing provocative pictures of Ellie smoking one of Harbour’s favourite brands of cigar.

The social media sH๏τ of Ellie, who has 10,000 followers on Instagram, was uploaded in October – several weeks before Harbour and Lily decided to separate.

Ellie is believed to have met Harbour in the US city of Atlanta, where the actor has been living for a year to film the fifth and final series of Stranger Things. 

Friends say that Lily Allen, 39, is aware of the romance and is ‘very upset’

Ellie is believed to have met Harbour (pictured) in the US city of Atlanta, where the actor has been living for a year to film the fifth and final series of Stranger Things

The Mail on Sunday can reveal that the 49-year-old Hollywood actor is dating Ellie Fallon (pictured), an aspiring model and actress 22 years younger than him

Friends say that Lily, 39, is aware of the romance and is ‘very upset’ after seeing provocative pictures of Ellie smoking one of Harbour’s favourite brands of cigar 

A source said: ‘Lily is aware of the romance and has been very upset.

‘Seeing the picture Ellie posted of herself smoking a cigar, taken weeks before Lily and David called it quits, has convinced her that Ellie and David had been seeing each other before they split.

‘After all, how many 26-year-olds smoke cigars?’

A cigar connoisseur, Harbour is often spotted puffing on one in public. He was pictured by The Mail on Sunday smoking one a month ago, during a walk with Hollywood actress Scarlett Johansson.

The actor – who is said to have called time on his marriage in December – attended the Critics Choice Awards in LA last Friday night without his wedding ring on. 

It was his first appearance since his split from Lily became public. 

Harbour was pictured by The Mail on Sunday smoking one a month ago, during a walk with Hollywood actress Scarlett Johansson

Lily has returned to New York to see her two children and is planning to return with them to London

Lilly was spotted for the very first time with her daughter Ethel Cooper after announcement of her split from Harbour 

The former couple married in Las Vegas a year after meeting in a whirlwind romance

Arriving on the red carpet alone, he appeared to be in good spirits, smiling as he posed for pH๏τos. 

Meanwhile, Lily has returned to New York to see her two children and is planning to return with them to London.

‘She feels so much better for having drowned out all the noise,’ added the source. 

‘She now believes that whatever David is doing with his life is his business.

‘He obviously has his own issues he needs to work through and it’s got nothing to do with her any more.’

The former couple met on celebrity dating app Raya in 2019 and married in Las Vegas a year later after a whirlwind romance. 

The actor – who is said to have called time on his marriage in December – attended the Critics Choice Awards in LA last Friday night without his wedding ring on

Lily spent most of last month at a £10,000-a-week clinic in America following the split 

The former couple met on celebrity dating app Raya in 2019 (pictured together in 2020)

However, last December he was spotted at a temple in the Himalayas with a then unnamed mystery woman after pulling out of a safari with Lily and her two daughters.

The traumatised pop singer went on to spend most of last month at a £10,000-a-week clinic in America.

This week she revealed that she had been experiencing ’emotional turmoil’ and is ‘highly medicated’ on antidepressants.

She said: ‘I’m not saying I’m 100 per cent there but I’m definitely in a stronger place.’