Olivia Nuzzi's ex-fiancé Ryan Lizza called her accusations "false" in a statement to PEOPLE Paul Morigi/Getty; Randy Shropshire/Getty; Steve Granitz/FilmMagic , the reporter who has made headlines for her with , claims her ex-fiancé had a role in leaking the allegations. According to , Nuzzi, 31, claimed in a court filing in Washington, D.C.

's Superior Court this week that her former fiancé Ryan Lizza, who is the and co-author of the the site's Playbook column, "explicitly threatened to make public personal information about me to destroy my life, career, and reputation." Nuzzi alleged that Lizza made the threat in mid-August — nearly four weeks before her employer, , announced that she had been placed on leave due to her "personal relationship with a former subject relevant to the 2024 campaign while she was reporting on the campaign." Paul Morigi/Getty While it is not clear when Nuzzi and Lizza's engagement came to an end, Nuzzi claims that Lizza's alleged harassment dates back to July and was done to blackmail her back into a relationship with him, CNN reported.

Related: Nuzzi claimed that Lizza stole a personal electronic device from her to anonymously disclose some private information about her to the media and tipped off New York magazine about her alleged "personal relationship" with Kennedy, 70, which she called "the matter" in court records, per CNN. According to the outlet, a judge approved Nuzzi’s requests to temporarily bar Lizza from contacting her and .