A handwritten love letter from President John F. Kennedy to one of his alleged mistresses sold for $88,970 according to Boston-based RR Auction, Art Daily reports.

The four-page letter written weeks before Kennedy's assassination in 1963 to Mary Pinchot Meyer, a family friend and former wife of a CIA agent.

“Why don’t you leave suburbia for once — come and see me — either here — or at the Cape next week or in Boston the 19th. I know it is unwise, irrational, and that you may hate it — on the other hand you may not — and I will love it,” Kennedy wrote.

The letter was never sent but remained in the collection of Kennedy's longtime personal secretary, Evelyn Lincoln. The tops of the White House stationery were clipped off; the faded presidential seal watermarks are visible under bright light.

Mary Meyer was killed in October 1964, a year after the letter was written. Her murder has not been solved.

“It’s an incredibly revealing Kennedy letter that is written in such a casual and very informal manner — not something that you would expect to see from a president,” said Robert Livingston, Executive VP at RR Auction.