Lisa Armstrong threatens to take Sky electrician ex James Green to court over claims he owes her £100K after moving out of her £4.5M mansion

Lisa Armstrong is threatening to take ex-boyfriend James Green to court, claiming he owes her £100,000.

The make-up artist, 46, split from the Sky electrician in August after father-of-two James, 40, surprisingly ended their romance and moved out of her £4.5million London home while she worked in Manchester.

And insiders close to the former couple have told MailOnline that their relationship has become toxic over money, as Lisa claims she lent him money during their time together, but he is resisting all approaches.

James’ alleged reluctance to pay Lisa has led to her reluctant decision to hire lawyers to recover the money she claims is owed, which amounts to six figures.

A source said: ‘Lisa feels she has no choice but to take the legal route.

Ant McPartlin and Lisa at their wedding at St. Nicolas Church in Taplow, Buckinghamshire on July 22, 2006

Lisa (right) started dating father-of-two James (left) in 2020 when he became estranged from wife Kirsty after moving from their marital home in Hampshire

‘During their time together, she lent James money so he could enjoy a comfortable life, thinking she would get it back.

‘And after their divorce she has increased her demands, but she fears James will never pay.

“As a result, she believes that bringing him to trial may be the most realistic hope of reaching a settlement.”

Lisa and James dated for three years and the electrician was her most serious relationship since her high-profile divorce from husband Ant McPartlin, in which she reportedly received a £31 million payout.

They were first pictured together in 2020 on a trip to a park in London and went on to enjoy numerous luxury holidays, which Lisa documented on her Instagram page, along with many loved-up selfies.

James was working for a company installing electric doors when they met, having recently moved from the £450,000 family home he shared with ex-wife Kirsty in Winchester, Hampshire.

But James, who was married to his former partner for five years, shocked Lisa by breaking up with her completely unannounced and moved his belongings out of her home while she was away.

A source told MailOnline at the time: ‘I don’t really know what went wrong. They were together on a fancy holiday in the Caribbean just eight weeks ago.

“One day he was with her, and the next day he just wasn’t with her. There was no suspicion that anything was wrong.”

Despite the surprise split, friends said the pair were initially on amicable terms, but that is no longer the case, mainly due to Lisa’s demands for her money back.

A friend of James said: ‘When Lisa gave him that money he thought it was good; he did not see it as a loan with strict conditions to pay it back within a certain time.

‘It’s all gotten quite messy and Lisa threatening him with legal action is obviously worrying given her financial power.’

James has been contacted for comment.

Lisa, 46, regularly posted selfie photos on Instagram in which she appeared to be in love with James, along with photos of them enjoying a series of luxury holidays

James (pictured) surprisingly ended their romance, moving out of her £4.5million London home while she worked in Manchester

Lisa is currently working on the latest series of BBC One’s Strictly Come Dancing in her role as the show’s lead make-up artist.

She regularly posts photos from behind the scenes of the show, as well as of her beloved dog Harley, who she shares with ex-husband Ant.

Despite their split, photos of James remain on her account, including one posted in April as the pair enjoyed a romantic evening with the caption: “Date night with my boy @jamesgreen83.” Love you a lot.’

Last month she posted a photo to mark his 40th birthday, showing James surrounded by balloons. She wrote: “I love you millions.”

Lisa and Ant’s marriage officially ended in October 2018 when she was granted a decree nisi after he admitted adultery.

But the couple continued to finalize their financial settlement while reportedly disagreeing over the custody arrangement for labrador Hurley.

Ant now lives in a £6 million mansion in Wimbledon, South West London with new wife Anne-Marie Corbett, his former personal assistant, who he married in a church ceremony in Heckfield, Hampshire, in August 2021.

Lisa reportedly showed her disapproval of the relationship by liking a fan’s tweet, which said it was “a major breach of girl code” to “move in with your wife’s boyfriend.”

Lisa first met Ant on a Smash Hits tour in Newcastle in 1994 when she was in a band called Deuce, performing with him and partner Dec, who reached new TV and music heights as PJ and Duncan after their stint in Byker Grove.

They were together for more than a decade before Ant proposed to her on holiday in Dubai in 2005, and they married in July 2006 at a country house hotel in Buckinghamshire with Dec as Ant’s best man.

Ant spoke to his wife in 2013 about his struggle to conceive, telling Radio Times: ‘Lisa and I would love to have children. Tried. When you get older, it’s harder than you think.’

Ant, who lives in a £6million mansion in Wimbledon, south-west London, married his former personal assistant Anne-Marie Corbett, 46, in a church ceremony in August 2021 in Heckfield, Hampshire (pictured)

Lisa was having a great time with her electrician boyfriend James Green (pictured) before they split

He also told Fabulous Magazine: “I think I’m lucky. Lisa works in the industry and understands it. She is constantly working – sometimes more than me!

“We would love to have a family, so fingers crossed. If we are blessed with children, we would be over the moon!’

Ant went to rehab for alcohol and drug addiction in 2017 when he admitted he needed help. He said: ‘I feel like I’ve let a lot of people down and I’m really sorry for that.’

He claimed in an interview that he put Lisa through hell with his mood swings and depression, but praised her for being “fantastic.”

Ant’s rep announced in January 2018 that the couple’s 11-year marriage had ended.