“Your conduct was born from genuine thoughts of a relationship, but I do not find this a mitigating factor. There was a degree of sophistication to it. You planned interactions to cause significant distress.”You have demonstrated no remorse.”Doyich, of Parsifal Road, West Hampstead, admitted stalking causing serious alarm or distress in respect of the wife. She denied a second stalking charge in respect of the husband and the offence was ordered to lie on the file.She was sentenced to 18 months in prison, suspended for two years, ordered to complete a 30-day rehabilitation activity requirement and to pay costs of £750.Peter Caldwell, defending Doyich, said she had “invested a great deal of emotional hope” in her relationship with the husband and was “carried away” with the affair.He added: “She was a person who had hoped for so much and had it dashed. The response from the man was very cruel.”This was not a sophisticated offence, it is all too easy to cause harm on Twitter.” It was the chilling 1987 blockbuster about a spurned lover who wreaks revenge on a married man by launching a terrifying stalking campaign against him and his family.But when the wife of a hedge fund manager discovered her husband was having an affair – and his jilted mistress began viciously harassing her online – she said it felt like she had walked onto the set of Fatal Attraction.The woman, who cannot be named for legal reasons, was subjected to a barrage of abusive Twitter posts from Simin Doyich, who had been meeting up with her husband for sex after they met on dating site ‘Illicit Encounters’.He had liaisons with the 45-year-old at his office and in five-star hotels when he was away on business trips in Paris and Zurich, Inner London Crown Court heard.But when she told him she was carrying his child, the wealthy 55-year-old broke off their affair, sparking a barrage of abuse towards his wife, the court heard.The terrified woman said it was like “emotional GBH” and a “nightmare”.Giving evidence in court, she added: “It was as if I had walked onto the set of the film Fatal Attraction. Paul Casey, prosecuting, said: “In 2017 the couple had been married for 19 years and together for much longer and had two sons.”He met the defendant through a website and began an affair for two to three months. He did not intend to leave his wife and he made this very clear from the beginning.”When Doyich fell pregnant the cheating hedge fund manager offered to pay for a private termination, but said he would fulfil his financial obligations if she kept the child.The man then told his wife about the affair and the pair sought legal advice.Mr Casey said: “On 7 March 2017 he asked if she would stop contacting him when she accused him of abusing his wife.”There were a number of phone calls made to his wife and she began to employ the social media site Twitter in order to stalk her.”Sentencing, Judge Benedict Kelleher told Doyich: “You had become consumed with jealousy. You used the Twitter account to post numerous tweets attacking her.”You also made threats to appear at events she would be attending, though you did not follow through. It was only after your arrest that the harassment stopped. “I was subjected to a total barrage of abuse – I had Twitter tentacles in every part of my life. I was in a state of extreme trauma, I developed a fear of using the internet.”I withdrew from social life. There was not one day I did not worry. I have experienced some of the most awful parts of my life.”Doyich tweeted intimate messages she and the husband had exchanged, pixelated photos of them together, and an alleged ultrasound of her unborn child.The prosecution argued that this was intended to expose the husband’s affair to people he knew and cause the couple harm and distress.Doyich called the wife “ugly” and branded her family “trashy” on the social networking website. She also posted links to articles which discussed couples trapped in sexless marriages, and published emojis of faeces and pig faces.One of her tweets read: “People never change, like X – he has no balls at all, born miserable and dying miserable, sad man.”Another said: “You cannot keep him with force # HeWillLeaveOneDayJustWaitingFo rXXToGrowUp *baby emoji* Your bed has shared with me too.”Doyich admitted stalking the wife and walked free from court today after being handed an 18-month sentence suspended for two years. Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.