American businesswoman Jennifer Arcuri claims she kept ‘intimate’ diaries about her relationship with Boris Johnson .
The 34-year-old says the diaries include notes of their phone conversations, adding she plans to write a book.
The Prime Minister has been plunged into allegations of a conflict of interest after he failed to declare his friendship with Ms Arcuri, who received public funds while he was Mayor of London.
Now the tech entrepreneur claims she kept “verbatim” notes of phone conversations with Mr Johnson as she suggested she could expose “screenshots” of conversations.
She told the Sunday Times she is seeking a book deal – adding that the Prime Minister, currently on a lavish holiday in Mustique with girlfriend Carrie Symonds, has ‘nothing to worry about’.
“I’m debating what kind of story I’m going to tell,” she told the newspaper. “It’s not a threat against him. It’s not trying to give the Boris haters a carrot.”
But the former model complained she has been unable to reach Mr Johnson since allegations her business ventures received favourable treatment when he was mayor.
“This is what makes me crazy,” she said. “What can I possibly do to make this man acknowledge me?
“Is it exposing intimate details of my diaries, is it showing screenshots of conversations, I mean, what can I possibly do?”
The Innotech founder, who is now living in the States, has not claimed to have had an affair with Mr Johnson.
But during interviews she said she had a “very special relationship” with the PM while he was mayor.
She also said he regularly visited her flat in Shoreditch, east London, for “technology lessons.”
Ms Arcuri’s business received £126,000 in public money and she went on three foreign trade trips led by Mr Johnson when he was mayor between 2008 and 2016.
The Independent Office for Police Conduct has postponed a decision on whether to investigate him for misconduct in public office.
Ms Arcuri claimed a British newspaper had approached her with an offer to serialise her story ahead of the election, but she turned it down.
Mr Johnson has repeatedly refused to answer questions about his relationship with Ms Arcuri but insists there was “no interest to declare”.
The PM has previously said everything was done with full propriety.