A Harvard Law professor is again trying to sue a journalist who he says manipulated him into sharing his life’s secrets for a book she planned to write without him.

Professor Bruce Hay, 60, said former New York Magazine writer Kera Bolonik, 47, convinced him to let her co-author a book about his complicated relationship with a controversial couple — a lesbian woman and her transgender wife — but then turned around and signed her own book deal.

Hay “lost the opportunity to be the first to reach the book market on the subject of his story,” the suit, filed last week in Manhattan Federal Court, claims.

He is seeking no less than $75,000 in damages.

Bolonik’s deal included an undisclosed six-figure advance, according to the suit.

A court ruled in Bolonik’s favor in 2021 in a lengthier suit that included defamation and sexual harassment claims.

Hay said she sought inappropriate intimacy in order to manipulate him.

Bolonik, who also wrote two articles about the prof, is still writing the book, which is set to be titled “Gullible,” according to her biography on Dame Magazine, where she is editor-in-chief.

Neither party could be reached for comment.