Bill O’Reilly and Martin Dugard researched the topic of Kennedy's indiscretions very well in the book, Killing Kennedy. They imply that Kennedy's philandering stopped around the time of the Cuban Missile Crisis for 2 reasons: 1) Jackie almost walked in on him, and somebody read him the riot act about if he wanted re-election he couldn't be banging all the gals; 2) the missile crisis was a turning point in his relationship with Jackie. He seemed to have to face the fact that he was vulnerable and his wife was a pillar of support.
Kennedy disgraced himself and it cost all of us in some ways. Today, it is just salacious gossip and bad example.
Bill O’Reilly churns out staff-written pulp-nonfiction that is poorly researched.
JFK did not curb his time with various mistresses. The Cuban Missile Crises and the death of baby Patrick did not brink Jack and Jackie closer together as Kennedy sycophants like to say.
During his late night October huddles during the missile crises he not only had 19 year old Mimi Beardsley on call but he had her upstairs in the White House family quarters.
After baby Patrick’s death, Jackie took off to the Mediterranean to sail upon Aristotle Onassis’ yacht while back home JFK was writing pleading let’s meet notes to his LSD pioneer mistress, Mary Meyer.