As it turns out, Jackie had a feeling that JFK and her father weren’t all that different.

I saw how that nearly killed Mummy."

The author of the book, J. Randy Taraborrelli, toldPeople, “She wasn’t naive to it.

John F. Kennedy and Jackie Kennedy posing for photos

‘This one is different, Jack.

Have some pity on her,’ she warned.

‘I want you to leave Marilyn alone,'” (viaCheatSheet).

John F. Kennedy and Jackie Kennedy photographed outside

He wrote that the actor was impulsive and could’ve babbled about the secret at her fancy.

Marilyn Monroe posing for photos