Read the creepy texts top cardiologist Professor Chris Semsarian is accused of sending to young employee he was mentoring - as she files sexual harassment claim

A world renowned cardiologist bombarded his young female employee with thousands of texts, repeatedly asked her for coffee, offered her lifts home and allegedly touching her buttocks, according to a sexual harassment claim.

Jennifer de Jongh, 28, also alleged Professor Chris Semsarian, 57, showed up unannounced at her home, prompting her housemate to threaten to call police.

Ms de Jongh, originally from New Zealand but who was living in Sydney at the time, lodged the sexual harassment claim with the Federal Court on February 12.

She reported directly to Prof Semsarian while working at the Centenary Institute from June, 2022 to December of that year, where the pair exchanged between 3,000 and 4,000 texts.

During this time, Prof Semsarian, who is a professor of medicine at Sydney University, a cardiologist at the Royal Prince Alfred Hospital and deputy director for the Centenary Institute, is accused of constantly asked Ms de Jongh for coffees, and offered her lifts home.

He would allegedly bombard her with texts using love heart and smiling emojis that were often sent out of work hours and late at night. 

Prof Semsarian has denied the claims and said he would be 'vigorously defending' them in a legal defence set to be filed, the Sydney Morning Herald reported.

Over a six-month period there were only seven days where Prof Semsarian and Ms de Jongh didn't speak, according to the claim seen by Daily Mail Australia.

On her first day working at the Centenary Institute they had coffee, before Prof Semsarian offered her a lift home two days later.

She initially declined but then accepted - something that would happen on several more occasions.

The document lodged with the Federal Court included numerous texts sent from Prof Semsarian.

'Coffee and your company is the perfect start to the day,' he wrote in one text from July, 2022.

In August he wrote: 'I know it's nearly your bedtime… but if you're free come early to clinic tmr (tomorrow) for a coffee?? I don't want to sound pathetic but I won't see you for the rest of the week (sad face emoji).'

'You. Have. Made. My. Day. Will be so good to see you. It seems like forever!! We'll discuss a small pastry later,' he said in another message, before writing 'don't want to sound too needy' two days later.

Prof Semsarian told Ms de Jongh 'my life balance is restored' after she returned to work one day in September.

Then one day in October he referred to her as 'princess' when asking what she wanted to order.

'You are the best Jen. I don't know if you're joking, but I really truly get excited going to sleep knowing we're having coffee together tmr – NOT with (another colleague),' he wrote that night.

'I have separation anxiety overnight!!!!'

When Prof Semsarian was away in November, 2022, he texted her saying: 'I don't want to be presumptuous but hoping to have a coffee with you Thursday morning? And a big hug too?? Hope clinic goes well..'

The cardiologist also insisted on driving Ms de Jongh home, despite her often saying she would walk or hadn't finished work yet.

'First patient at 145 so come at 115pm! Can't wait. And I def have to drive you home!! No argument. It's been too long!!' he said in another text from September.

'It's not just raining, it's thundering!!! Have to take you all the way home!! I love God – always answers my prayers, and more!!' he said in a message a few days later.

In another message he wrote: 'Oh Jen. I worry about you walking at nighttime I can be your personal Uber anytime!! Sweet dreams beautiful one! See u tmr'.

A text conversation between the pair showed Ms de Jongh turning down an offer of a lift because she was meeting a friend, to which Prof Semsarian said he was 'shattered'.

She eventually said he could drive her part of the way.

During a night in October, Ms de Jongh was meeting a friend in Bondi, which Prof Semsarian offered to drive her to.

During the drive, he told her 'no means no to everyone, except if you say it to me', according to the statement of claim.

'If I offer you dinner you can't say no, if I offer you a ride home, you can't say no.'

He then claimed it was a joke and told her not to be so 'uptight about it'. 

He then asked if she had been sexually abused before as he 'got the impression from how you reacted to something the other day that you might have been'.

Prof Semsarian would also plead for Ms de Jongh to have dinner with him occasionally as he drove her home, and confided in her that he and his wife were not doing many things together.

In other messages Prof Semsarian wrote: 'Seriously, do we have a connection?? It's scary!! Will be fabulous to meet your mum.

'Why do you think I ask the night before if you can do coffee… so I go to sleep happy and wake up excited I love your company. It's so easy, so meaningful. So happy.

'Ok. Go get your beauty sleep, even though you don't need it, and see you tmr. Sweet dreams.'

He also sent her a photo of his bed in his hotel room once and on another occasion said he was having 'Jen withdrawals'.

When Ms de Jongh was away on a trip to Tasmania with a friend, Prof Semsarian asked where they both slept.

When she replied saying they shared a bed he said words to the effect of: 'ooh, don't give me naughty thoughts'.

In other texts he wrote: 'I am totally genuine. I probably share too much with you but it's the truth. I miss you on weekends.

'Hey. I saw a doctor today and he diagnosed me with J-SAD!! Jen-related Separation Anxiety Disorder!! Dr said it's a chronic condition. I told the Dr I was going to be away for a week and Dr suggested the only treatment was to have a drink/dinner with Jen before I go.'

Ms de Jongh also claims her supervisor touched her on the buttocks when she got into his car in October, 2022.

On another occasion she claimed he looked at her chest and complimented her top.

He also bought her a pair of $900 Apple Airpod Max headphones, which Ms de Jongh repeatedly refused to accept.

In November, 2022, Ms de Jongh told Prof Semsarian she was feeling overwhelmed with the amount of texts he was sending and that she 'felt uncomfortable' at times and wanted to keep their communication strictly work related.

The professor later that day texted her saying there was a 'big storm' coming and offered her a lift home, which she rejected.

About a week later Prof Semsarian texted Ms de Jongh's mother asking if she was okay as she had travelled to New Zealand and caught Covid.

At the end of November, Ms de Jongh received a certificate from her doctor saying she was unfit to work for the next week due to 'stress and anxiety arising from Professor Semsarian's conduct'.

The professor then sent chocolates and fruit to her house. On December 5, 2022, Ms de Jongh called him to say she would be resigning. 

Three days later Prof Semsarian tried to call Ms de Jongh twice before appearing  unannounced at her apartment and ringing the intercom multiple times.

She didn't answer but her roommate instead told Prof Semsarian not to come to their home again or she'd call the police, according to the statement of claim. 

Ms de Jongh blocked his number the following day and left for New Zealand. She is currently living in Norway.

The statement of claim said Prof Semsarian's conduct was 'inappropriately affectionate' and was conducted in a 'manner that mimicked a romantic relationship'.

According to the claim, Ms de Jongh suffered post-traumatic stress disorder and depression, along with loss of past and future income.

An investigation was not launched by the Centenary Institute. The organisation said it was filing a defence and was 'unable to comment'.

It added it takes eliminating harassment in the workplace seriously.

Daily Mail Australia has approached Prof Semsarian for comment.