The co-founder of the Princeton Review says he was conned out of millions by his psychic ex-girlfriend.

In papers filed in Manhattan Supreme Court, Adam Robinson said he supported Laura Day for years and even wrote most of her best-selling books, but the psychic-to-the-stars stabbed him in the back by preying on his “psychological weaknesses” and manipulating him out of his money.

“Robinson, as Day fully knew, had a psychological infirmity in handling his personal finances. Day capitalized on this weakness in order to profit personally, and persuaded Robinson to deliver to her signatory power over Robinson’s bank accounts,” the $14 million suit says.

The suit says they met in 1994. Their relationship soon turned romantic, and Robinson acted as “a surrogate father” to Day’s then 2-year-old son, Samson.

“Robinson was a New York Times best-selling author whose books had sold millions of copies,” the suit says, while “Day did not have a career or source of income, though she occasionally offered ‘intuitive’ readings to a few clients, including celebrities.”

Robinson says he offered to help her with a book proposal on her intuitive skills. After landing her a $250,000 advance, he turned her “virtually unusable” notes into a book.

The book, “Practical Intuition,” launched Day’s writing career. She was paid $750,000 for the paperback rights, and given a $3 million advance for her next two tomes. Robinson wrote those as well, the suit says.

Despite raking in more than $300,000 a year for her consulting, she also convinced Robinson to give her half of his royalty checks on his own books, the suit says.

She also used his love for her son to get the rest of his approximately $350,000 a year in royalties by telling him the boy needed it, according to the lawsuit.

In reality, the suit says, Day was taking the money for herself. And Robinson found himself unable to pay his living expenses and the $10,000 a month he owes the IRS, the suit says.

A Day pal called Robinson’s claims fiction. She described him as a “vengeful” person going after Day’s money.

“He didn’t write anything,” the pal said. “He has no money. He hasn’t worked in 10 years and she supported him.”

dareh.gregorian@nypost.com

