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Wednesday, November 11, 2026

Tech billionaire turned party girl, 32, plans to sue her TV star ex-girlfriend after lurid sex and drug claims she says are false, court papers show - Daily Mail

An ultra-rich tech investor turned DJ says she is preparing to sue for defamation after her TV star ex-girlfriend made a series of shocking claims during their break-up, court papers have revealed.

Lucy Guo, a 32-year-old AI entrepreneur who was once lauded as the world’s youngest self-made female billionaire, said she planned to take legal action against the British actress Wallis Day, 32, in a declaration made to a federal court.

Details of the couple's spectacularly messy split emerged in a petition Guo made to the United States District Court for the Northern District of California to enable her to subpoena Instagram owner Meta.

The eccentric Scale AI co-founder is seeking information about the reach of a post that she said Day, who has 425,000 followers, made on Instagram. In her declaration, she claimed the post was defamatory and that she intended to bring a lawsuit against Day in the UK courts.

The declaration stated: 'Guo posted an Instagram story to publicize and promote her latest single/remix titled “Done with your ex,” along with the caption, “fun fact: I broke up with my ex the night we made this".

The declaration claims that Day, who starred in the CW TV show Batwoman, reposted Guo's remarks and added the caption: 'Broke up with me lol…tried to get me to sign a prenup, came in wasted and tried to have sex, I told you no & left. Then stole hundreds of thousands worth of my belongings to coerce me into signing an NDA with hush money. I refused.'

The court...



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