Jackie Kennedy confronted therapist when she discovered she also treated love rival Marilyn Monroe 

Jackie Kennedy reportedly confronted her therapist when she discovered she was also treating Marilyn Monroe who was having an affair with her husband, President John F. Kennedy.

The former First Lady started psychiatrist Dr. Marianne Kris seen in the 1970s after her husband’s murder, according to a new biography entitled ‘Jackie: Public, Private, Secret’ acquired by People.

But she was left furious when she discovered that her therapist had also conducted sessions with her love rival Monroe.

Kris is said to have asked Jackie ‘How is this relevant’ when challenged about it and Jackie replied ‘How is that irrelevant?’.

Her husband, President Kennedy, was rumored to have had an on-again, off-again relationship with the iconic actress for years until 1962.

Jackie Kennedy reportedly confronted her therapist when she discovered she was also treating Marilyn Monroe, who was allegedly having an affair with her husband, President John F. Kennedy

Psychiatrist Marianne Kris reportedly asked Jackie

Psychiatrist Marianne Kris reportedly asked Jackie “How is this relevant” when challenged during her sessions with Marilyn Monroe (pictured) and Jackie replied, “How is that irrelevant?”

John F Kennedy and his brother Robert Kennedy pictured with Monroe from the night she sang

John F Kennedy and his brother Robert Kennedy pictured with Monroe from the night she sang “Happy Birthday” to the president. It is said to be the only extant photograph of the trio together

Jackie was married to Greek shipping magnate Aristotle Onassis when she was with the therapist.

The pair discussed ‘Mrs. Onassis’s persistent PTSD, about the November 1963 assassination of President Kennedy in Texas. She was sitting next to him in the motorcade at the time of his death.

“They addressed Ms. Onassis’s lingering PTSD over the murder, as well as certain nagging issues about their marriage,” Kris’s secretary, from 1972 to 1974, Patricia Atwood told author J. Randy Taraborrelli.

“He went out in a blaze of glory,” said Mrs. Onassis, according to one of the notes I read.

“The way he died completely robbed her of the right to hate him,” she said. Alongside that message, Dr. Kris wrote that her grief was anything but, as she put it, “cleared up.”

Jackie soon found out that Kris once treated Monroe and she became angry.

“When Jackie confronted her, Kris said she didn’t feel responsible for informing her about former patients in the same way she would never reveal she ever treated Jackie,” Taraborrelli wrote.

The former First Lady began seeing psychiatrist Kris in the 1970s after her husband's murder, according to a new biography titled

The former First Lady began seeing psychiatrist Kris in the 1970s after her husband’s murder, according to a new biography titled “Jackie: Public, Private, Secret.”

Jackie was told that Kris had also treated Monroe and she got angry and confronted her

Jackie was told that Kris had also treated Monroe and she got angry and confronted her

Accounts claim the affair began in the early 1950s, when President Kennedy was just a senator from Massachusetts and a relative unknown in Hollywood.

Around the same time Monroe was having an affair with the president, she also started sleeping with his brother, Bobby Kennedy

President Kennedy reportedly passed the actress on to his younger brother, Attorney General Robert Kennedy (right), who was also married at the time, after growing tired of the affair

The claims are made in a new biography titled

The claims are made in a new biography titled “Jackie: Public, Private, Secret” written by J. Randy Taraborrelli

Marianne asked, “How relevant is this?” to which Jackie replied, “Why is that irrelevant?”.

Rumors of President Kennedy’s affair with Monroe were fueled by her sultry performance for his 45th birthday at Madison Square Garden on May 19, 1962, just three months before he died.

The performance caused one gossip columnist to remark, “It looked like Marilyn was making love to the president in front of 40 million Americans.”

The relationship was never confirmed, but it quickly became one of the biggest political scandals in American history.

The pair are said to have met only four times between 1961 and 1962, according to Donald Spoto’s 2001 biography of Monroe, which also states they had one sexual affair.

But other accounts claim the affair began in the early 1950s, when President Kennedy was then just a senator from Massachusetts and a relative unknown in Hollywood.

They were reportedly first introduced by Peter Lawford because Monroe was close friends with him and his wife, the president’s sister, Pat Kennedy Lawford.

But President Kennedy essentially passed the actress on to his younger brother, Attorney General Robert Kennedy, who was also married at the time, after growing tired of the affair.

Monroe died three months after she famously sang the famous

Monroe died three months after she famously sang the famous “Happy Birthday” to President Kennedy. The performance caused one gossip columnist to remark, “It looked like Marilyn was making love to the president in front of 40 million Americans.”

Monroe reportedly fancied herself as a second First Lady and at one point called Jackie to tell her of the president's infidelity, according to the biography

Monroe reportedly fancied herself as a second First Lady and at one point called Jackie to tell her of the president’s infidelity, according to the biography “These Few Precious Days: The Final Year of Jack with Jackie.”

She was reportedly introduced to President Kennedy by Peter Lawford, as Monroe was close friends with him and his wife, the president's sister, Pat Kennedy Lawford.

She was reportedly introduced to President Kennedy by Peter Lawford, as Monroe was close friends with him and his wife, the president’s sister, Pat Kennedy Lawford.

Robert (right) allegedly argued with Monroe hours before she was found dead at her California estate on August 4, 1962

Robert (right) allegedly argued with Monroe hours before she was found dead at her California estate on August 4, 1962

Though her affair with the president reportedly continued at the same time.

Monroe reportedly fancied herself as a second First Lady and at one point called Jackie to tell her of the president’s infidelity, according to the biography “These Few Precious Days: The Final Year of Jack with Jackie.”

“Marilyn, you’re going to marry Jack, that’s great. . . and you move to the White House and you take on the responsibilities of first lady, and I move and you have all the problems,” Jackie is said to have replied.

Robert allegedly had a fight with Monroe hours before she was found dead at her California estate on August 4, 1962.

From a humble first marriage to a mysterious death: Marilyn’s tumultuous relationships, affairs and divorces

1942: First marriage to munitions factory worker, James Dougherty

[1945: Ondertekend bij een modellenbureau als pin-up girl

1946: Gescheiden Dougherty

1948: Affaire met 20th Century Fox exec, Joseph Schenck begint, en lanceert Marilyn’s Hollywood-carrière

1948: Talentagent Johnny Hyde verlaat zijn vrouw om Marilyns ‘sugar daddy’ te worden

1951: Clandestiene affaire met getrouwde Hollywood-regisseur Elia Kazan

1954: Huwelijk met honkbalheld Joe DiMaggio, dat al na negen maanden in een scheiding eindigde

1955: Korte relatie met Marlon Brando

1956: Huwelijk met toneelschrijver, Arthur Miller

Eind jaren 50: Marilyns affaire met John F. Kennedy begint

1961: Gescheiden Miller, na een gedoemd huwelijk ontsierd door onvruchtbaarheid en een miskraam

1961: Marilyn ging kort uit met Frank Sinatra na haar scheiding met Miller

1961: De affaire met Robert Kennedy begint terwijl haar relatie met zijn broer JFK voortduurt

1962: Marilyn wordt op 4 augustus dood aangetroffen in haar huis in Brentwood