Sex & Relationships

Russian ex-lovers in million-dollar cold war

From Russia, no love.

Two Russian immigrants living in New York City are locked in a $1 million legal battle after 40-year-old nurse Inna Raykhelagauz gave up her lucrative nursing career to please her hedge fund honcho boyfriend.

The slender brunette met the cherub-faced Harvard Ph. D Mikhail Grinberg, 42, on JDate, a Jewish singles website, in 2008.

She was immediately swept off her feet by Grinberg, who earns an estimated $5 million-a-year as a mathematical whiz-kid for the $15 billion hedge fund Renaissance Technologies.

But after romantic jaunts to Miami and Costa Rica, Grinberg suddenly dumped Raykhelagauz via email in May 2009, her Manhattan Supreme Court suit says.

A few months later they got back together and Grinberg even gave his girlfriend a key to his new Suffolk County home and a pair of slippers to keep at his pad.

Their rocky relationship continued through December 2010 when Raykhelagauz discovered she was pregnant.

Her hot-and-cold lover “expressed excitement, joy and pleasure at this news,” according to court papers.

Raykhelagauz says Grinberg convinced her to give up her $100,000 job as a nurse practitioner at the prestigious New York Presbyterian Weill Cornell Hospital and her employer-subsidized Upper East Side apartment to devote herself to their baby.

She agreed after Grinberg promised to “take care of all the child’s needs,” hire a full-time nanny, pay for medical insurance and put her up in a $14,000-a-month apartment.

After their son David Elie Grinberg was born in August 2011, Grinberg visited his ex and baby boy on Saturdays and gave them $7,000 a month in support.

But the hedge fund researcher started slashing the payments and Raykhelagauz hauled her ex to Family Court in 2012.

Grinberg then booted his baby mama from her E. 62nd St. digs and stopped paying for childcare, according to the suit.

Raykhelagauz is suing Grinberg in civil court after a Family Court judge awarded her $2,500-a-month.

The ousted baby and mama are living in Coney Island. The spurned woman hasn’t been able to find a new job, according to papers.

Grinberg did not return calls seeking comment.