Paul Hollywood has split from his partner Summer Monteys-Fullam, his solicitor has confirmed.
Tom Amlot, a solicitor for the Great British Bake Off judge, 53, said he had asked the former barmaid, 24, to sign a non-disclosure agreement.
In a statement he said: "I asked Summer to sign an NDA as is standard practice in order to protect Paul's family and their private lives.
"Summer insisted that she had no intention of selling any stories to the press and declined.
"I think that her refusal to discuss or sign it caused concern, understandably, so it's not entirely surprising that they have gone their separate ways."
Summer packed her bags and moved back to mum Sabina's house on Wednesday after a furious showdown with Paul over the NDA.
The gagging order, if signed, would have banned her from speaking publicly about the intimate details of their relationship, including their sex life and Paul's finances with ex-wife Alex.
The document reads: "Private and confidential information includes, but is not limited to, any information (whether true or false): about their relationship, about PH's divorce, about PH's relationship with Alex Hollywood, about either of their private lives or their sex life together; about their relationships with their friends or family; or about each other's personal financial and/or business affairs."
The NDA is so restrictive that it even bans public discussion of its very existence.
Paul reportedly tried to badger Summer into signing the NDA by telling her it was no big deal and his mum and brothers were going to sign it too.
But she was so hurt that she felt the trust had gone from their relationship, and started moving back to her mum's house.
According to the Sun, furious Paul blocked Summer on social media, but once he calmed down sent her grovelling texts and unblocked her.
A source said: "Summer was devastated by Paul’s request that she should sign the papers.
"She felt she had been utterly loyal to him under the most difficult of circumstances. This was how she was being repaid.
Last month a judge signalled the end of Hollywood's marriage to wife Alexandra, who had filed for divorce on the grounds that the celebrity baker had committed adultery.
District Judge Robert Duddridge held that Mr Hollywood had committed adultery and that Mrs Hollywood found it "intolerable" to live with him.
He concluded that the marriage had broken down irretrievably and granted a decree nisi.
A marriage does not formally end until a decree absolute has been granted.
Detail of the reasons for divorce emerged in court papers.
The judge had heard how the couple had married in 1998. They split two years ago.
Mr and Mrs Hollywood had begun fighting over money at a separate court hearing.
But lawyers representing the television star have said an agreement has now been reached.
