Police swarmed the former marital home of Jules Wainstein and her estranged husband Michael on Thursday morning.

An officer was seen leaving the apartment carrying a written statement, with the words 'threatening me... going to ruin my life,' easily legible to those observing the scene.

A source close to Jules confirmed to DailyMail.com that the Real Housewives Of New York star had summoned police the day after the couple announced their divorce.

Police presence: Michael Wainstein, the estranged husband of Real Housewives of New York star Jules Wainstein, is seen climbing into a car with son Jagger on Thursday morning, after police were summoned to the couple's former marital home

Swarming the apartment: A source close to Jules confirmed to DailyMail.com that the Real Housewives Of New York star had summoned police with a call, the day after the couple announced their divorce

'He's volatile,' said the friend, revealing that Michael had been involved in an ongoing affair with a good friend of Jules.

'You do the math,' they added. 'He was texting her back in January.'

The revelation came as Michael was seen climbing into a car with the couple's son Jagger, five, outside the couple's apartment.

Statement: A female officer carried a statement detailing allegations, which a source said were made by Jules

The businessman carried a stuffed backpack, as multiple police officers escorted him from the building - which also houses his office.

Michael, a principal at Private Capital Group, wore a crumpled grey suit and had his dark hair slicked back.

A spokesperson for Jules confirmed the divorce to DailyMail.com but said of the police presence: 'I have no comment at this time.'

Evidence: On papers carried by an officer the words 'threatening me... going to ruin my life,' were easily legible

Michael, a principal at Private Capital Group, wore a crumpled grey suit and had his dark hair slicked back.

A spokesperson for Jules confirmed the end of the couple's eight-year-marriage to DailyMail.com but said of the police presence: 'I have no comment at this time.'

The dramatic scenes came after Wednesday's announcement that the couple were to divorce.

And in a new blog post on Thursday, Jules indirectly addressed the break-up, saying that she was focusing on her children.

'I'm trusting and open, but I'm also strong and practical,' she said. 'This isn't the end of the world, it's just a big bump in the road, but I'll get over it and I'll be stronger for it.'

Heading out: Michael, a principal at Private Capital Group, wore a crumpled grey suit

The previous night fans of RHONY had watched the strained relationship between JUles and Michael play out on scene.

Jules was seen voicing her suspicions about Michael's questionable behaviour - after he returned home late ahead of a double date yet still insisted upon taking a shower, then spent all evening on his phone.

The dinner began with Jules already venting her frustration at how little her husband of eight years was helping with their two kids Rio, three, and son Jagger.

Responding: The police officers swarmed the apartment after being summoned

'Don’t ever think that marriage is always going to be 50/50. Sometimes it’s 70/30 or 80/20.' she told pal and co-star Dorinda Medley.

'Even if we're on a date night, he's on the phone - who the f*** is he talking to?' she asked, with Dorinda's boyfriend John Mahdessian also dubbing him 'phone boy' because of it.

Her fury at her husband had first been expressed earlier in the episode as she discussed with her girlfriends how she was stressed over her father's ill-health after he got pneumonia and also needed an operation.

Early morning drama: The scenes came after Wednesday's announcement that the couple were to divorce

As they were: Michael and Jules were married for eight years and have two children together

'Girls gotta have fun!' Jules put a photo of herself and daughter Rio on Instagram on Thursday, making no mention of the earlier police presence at her home

'Michael's not very good with the kids,' she complained in the scenes taped just after New Year, explaining that the previous night she got home at 1am after a stressful day to chaos.

'Rio woke up and she was crying and he comes downstairs angry at me - ''Get her milk!'' - and I'm like, ''You can get her milk,'' she told her friends, her disgust obvious.

She also stated that Michael put the children to bed in their school uniforms, and did not change his daughter's diaper - leaving it 'full' until her mother got home.

On Thursday Jules' friend and RHONY co-star Ramona Singer, 59, shed some light on how the reality star is doing when she spoke to E! News: 'I'm very saddened for Jules. I know her heart's broken.'

Marriage woes: Wainstein showed her frustration with husband Michael in scenes filmed back in January on Wednesday's episode of The Real Housewives Of New York City

Running late: Michael angered Jules because he was late for their dinner date yet still insisted on taking a shower; it has now being claimed that he was already involved in the affair which has ended their marriage

On the phone: Jules complained that Michael was always on his phone - something he lived up to during their double date with friends

She added, 'I think Jules was totally shocked by what happened and was very disappointed and it's sad. It's just very sad.'

The RHONY vet also said: 'It's never easy when there are problems in a marriage, especially when you realize you need to divorce and I'm there for her.'

As far as how Jules is faring after the split, Singer said: 'She's doing as well as she can in the situation and her priority – because she is such a great mother – are her two children.

'I've already spoken a number of times with her and I plan to meet with her and just be there to support her in any way I can.'