Didn’t see it coming. Patrick Whitesell was completely shocked to learn that his wife, Lauren Sánchez, was having an affair with his friend Jeff Bezos, who was also married, a source tells Us Weekly exclusively.

“Patrick was totally blindsided. He had no idea how serious the affair was or how long it was going on for,” the insider tells Us. “Patrick had no idea she was having an affair with Jeff.”

The source explains that Whitesell, 53, and Sánchez, 49, “were having problems in their marriage for the last year,” but “were trying to work things out.”

A second source confirms to Us that the co-CEO of WME “introduced Lauren to Jeff and suggested they work together on a documentary.”

14 PHOTOS Patrick Whitesell and Lauren Sanchez together See Gallery Patrick Whitesell and Lauren Sanchez together LOS ANGELES, CA - DECEMBER 03: WME's Patrick Whitesell, Lauren Sanchez and Amazon CEO Jeff Bezos attend Jeff Bezos and Matt Damon's 'Manchester By The Sea' Holiday Party on December 3, 2016 in Los Angeles, California. (Photo by Todd Williamson/Getty Images for Amazon Studios) BEVERLY HILLS, CA - FEBRUARY 26: (EXCLUSIVE ACCESS, SPECIAL RATES APPLY) (L-R) TV personality Lauren Sanchez, talent agent Patrick Whitesell, and actor Casey Affleck attend the 2017 Vanity Fair Oscar Party hosted by Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 26, 2017 in Beverly Hills, California. (Photo by Kevin Mazur/VF17/WireImage) BEVERLY HILLS, CA - JANUARY 12: Agent Patrick Whitesell (L) and actress Lauren Sanchez attend HBO's Official Golden Globe Awards After Party at The Beverly Hilton Hotel on January 12, 2014 in Beverly Hills, California. (Photo by Jeff Kravitz/FilmMagic) LOS ANGELES, CA - NOVEMBER 02: Co-CEO of WME Patrick Whitesell (R) and tv personality Lauren Whitesell attend the LACMA 2013 Art + Film Gala honoring Martin Scorsese and David Hockney presented by Gucci at LACMA on November 2, 2013 in Los Angeles, California. (Photo by Jeff Vespa/Getty Images for LACMA) MALIBU, CA - SEPTEMBER 15: Lauren Sanchez and Patrick Whitesell attend Eddie Vedder and Zach Galifianakis Rock Malibu Fundraiser for EBMRF and Heal EB on September 15, 2013 in Malibu, California. (Photo by Jeff Vespa/WireImage) HOLLYWOOD, CA - MARCH 22: Lauren Sanchez (R) and her husband Patrick Whitesell arrive at the Summit On The Summit photo exhibition celebrating World Water Day at Siren Studios on March 22, 2013 in Hollywood, California. (Photo by Angela Weiss/Getty Images) LOS ANGELES, CA - FEBRUARY 12: Patrick Whitesell and Lauren Sanchez attend the Universal Music Group 54th Grammy Awards Viewing Reception hosted by Lucian Grainge at private residence on February 12, 2012 in Los Angeles, California. (Photo by Jeffrey Mayer/WireImage) WEST HOLLYWOOD, CA - MARCH 13: Agent Patrick Whitesell (L), his wife Lauren Sanchez and their children Evan and Ella arrive at John Varvatos' 8th Annual Stuart House Benefit at the John Varvatos Boutique on March 13, 2011 in West Hollywood, California. (Photo by Kevin Winter/Getty Images) Patrick Whitesell and Lauren Sanchez arrive at the Vanity Fair Oscar party hosted by Graydon Carter held at Sunset Tower on February 27, 2011 in West Hollywood, California. (Photo by George Pimentel/WireImage) TV personality Lauren Sanchez and husband CAA agent Patrick Whitesell arrive at The Weinstein Company and Realativity Media's 2011 Golden Globes after party held at Bar 210 inside The Beverly Hilton hotel on January 16, 2011 in Beverly Hills, California. (Photo by Barry King/FilmMagic) February 22, 2009 West Hollywood, Ca.; Patrick Whitesell and Lauren Sanchez; Vanity Fair Oscar Party 2009; Held at the Sunset Tower Hotel (Photo by Gregg DeGuire/FilmMagic) Actress Lauren Sanchez and husband talent agent Patrick Whitesell arrive at the 66th Annual Golden Globe Awards - InStyle Warner Bros Official After Party at the Oasis Court at The Beverly Hilton Hotel on January 11, 2009 in Beverly Hills, California. (Photo by Jon Kopaloff/FilmMagic) LOS ANGELES, CA - FEBRUARY 09: Lauren Sanchez and Patrick Whitesell attend LACMA's Opening Celebration of the Broad Contemporary Art Museum on February 9, 2008 in Los Angeles, California. (Photo by Jeff Vespa/WireImage) Patrick Whitesell and Lauren Sanchez during Giorgio Armani Prive in L.A. - Inside at Green Acres in Los Angeles, California, United States. (Photo by Jeff Vespa/WireImage) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

Whitesell and the Amazon CEO, 54, have known each other for years and worked closely together in 2016 while promoting Manchester by the Sea, which starred Whitesell’s client Michelle Williams. The Oscar-winning film was distributed by Amazon.

Bezos and his estranged wife of 25 years, MacKenzie, announced their plans to divorce on Wednesday, January 9. “After a long period of loving exploration and trial separation, we have decided to divorce and continue our shared lives as friends,” the businessman wrote on Twitter. “We feel incredibly lucky to have found each other and deeply grateful for every one of the years we have been married to each other. If we had known we would separate after 25 years, we would do it all again.” National Enquirer broke the news of the cheating scandal shortly after.

Bezos is considered to be the world’s richest person with a net worth of $144 billion. He and the novelist, 48, were married in September 1993 and share three sons and a daughter.

Whitesell and Sánchez, meanwhile, tied the knot in August 2005 and later welcomed two children, a boy and a girl. The former Extra host also has a 17-year-old son with ex Tony Gonzalez.

19 PHOTOS Jeff and MacKenzie Bezos through the years See Gallery Jeff and MacKenzie Bezos through the years FILE: Jeff Bezos, founder and chief executive officer of Amazon.com Inc., left, holds hands with his wife MacKenzie Bezos, while arriving for a morning session during the Allen & Co. Media and Technology Conference in Sun Valley, Idaho, U.S., on Thursday, July 11, 2013. Amazon.com Inc. founder Jeff Bezos, the worlds richest person, and his wife MacKenzie are divorcing after 25 years. Bezos, 54, is worth $137 billion, according to the Bloomberg Billionaires Index, a ranking of the worlds 500 wealthiest people. The couple met when they both worked at hedge fund D.E. Shaw, and they married in 1993. He founded Amazon a year later. Photographer: Daniel Acker/Bloomberg via Getty Images FILE: Jeff Bezos, founder and chief executive officer of Amazon.com Inc., and his wife Mackenzie Bezos, arrive at the Robin Hood Foundations annual benefit in New York, U.S., on Monday, May 12, 2014. Amazon.com Inc. founder Jeff Bezos, the worlds richest person, and his wife MacKenzie are divorcing after 25 years. Bezos, 54, is worth $137 billion, according to the Bloomberg Billionaires Index, a ranking of the worlds 500 wealthiest people. The couple met when they both worked at hedge fund D.E. Shaw, and they married in 1993. He founded Amazon a year later. Photographer: Peter Foley/Bloomberg via Getty Images FILE: Jeff Bezos, founder and chief executive officer of Amazon.com Inc., left, holds hands with his wife MacKenzie Bezos, while arriving for a morning session during the Allen & Co. Media and Technology Conference in Sun Valley, Idaho, U.S., on Thursday, July 11, 2013. Amazon.com Inc. founder Jeff Bezos, the worlds richest person, and his wife MacKenzie are divorcing after 25 years. Bezos, 54, is worth $137 billion, according to the Bloomberg Billionaires Index, a ranking of the worlds 500 wealthiest people. The couple met when they both worked at hedge fund D.E. Shaw, and they married in 1993. He founded Amazon a year later. Photographer: Daniel Acker/Bloomberg via Getty Images FILE: Jeff Bezos, founder and chief executive officer of Amazon.com Inc., and his wife MacKenzie Bezos, arrive for morning sessions at the 28th annual Allen & Co. Media and Technology Conference in Sun Valley, Idaho, U.S., on Saturday, July 10, 2010. Amazon.com Inc. founder Jeff Bezos, the worlds richest person, and his wife MacKenzie are divorcing after 25 years. Bezos, 54, is worth $137 billion, according to the Bloomberg Billionaires Index, a ranking of the worlds 500 wealthiest people. The couple met when they both worked at hedge fund D.E. Shaw, and they married in 1993. He founded Amazon a year later. Photographer: Matthew Staver/Bloomberg via Getty Images Amazon CEO Jeff Bezos and his wife MacKenzie Bezos poses as they arrive at the headquarters of publisher Axel-Springer where he will receive the Axel Springer Award 2018 on April 24, 2018 in Berlin. (Photo by JORG CARSTENSEN / dpa / AFP) (Photo credit should read JORG CARSTENSEN/AFP/Getty Images) Amazon CEO Jeff Bezos and his wife MacKenzie Bezos pose with publisher Springer CEO Mathias Doepfner(R), publisher Friede Springer (L) as they arrive at the headquarters of publisher Axel-Springer where he will receive the Axel Springer Award 2018 on April 24, 2018 in Berlin. (Photo by Jörg Carstensen / dpa / AFP) / Germany OUT (Photo credit should read JORG CARSTENSEN/AFP/Getty Images) Amazon CEO Jeff Bezos and his wife MacKenzie Bezos poses as they arrive at the headquarters of publisher Axel-Springer where he will receive the Axel Springer Award 2018 on April 24, 2018 in Berlin. (Photo by Jörg Carstensen / dpa / AFP) / Germany OUT (Photo credit should read JORG CARSTENSEN/AFP/Getty Images) BEVERLY HILLS, CA - MARCH 4: Jeff Bezos and MacKenzie Bezos attend 2018 Vanity Fair Oscar Party Hosted By Radhika Jones - Arrivals at Wallis Annenberg Center for the Performing Arts on March 4, 2018 in Beverly Hills, CA. (Photo by Presley Ann/Patrick McMullan via Getty Images) *** Local Caption *** Jeff Bezos;MacKenzie Bezos BEVERLY HILLS, CA - MARCH 04: Jeff Bezos and MacKenzie Bezos attend the 2018 Vanity Fair Oscar Party hosted by Radhika Jones at Wallis Annenberg Center for the Performing Arts on March 4, 2018 in Beverly Hills, California. (Photo by George Pimentel/WireImage) BEVERLY HILLS, CA - MARCH 04: Jeff Bezos (L) and MacKenzie Bezos attend the 2018 Vanity Fair Oscar Party hosted by Radhika Jones at Wallis Annenberg Center for the Performing Arts on March 4, 2018 in Beverly Hills, California. (Photo by Jon Kopaloff/WireImage) LOS ANGELES, CALIFORNIA - JANUARY 06: Chief Executive Officer of Amazon Jeff Bezos (L) and MacKenzie Bezos attend the SEAN PENN J/P HRO GALA: A Gala Dinner to Benefit J/P Haitian Relief Organization and a Coalition of Disaster Relief Organizations at Milk Studios on January 6, 2018 in Los Angeles, California. (Photo by Greg Doherty/Patrick McMullan via Getty Image) WEST HOLLYWOOD, CA - FEBRUARY 26: (L-R) CEO of Amazon Jeff Bezos and writer MacKenzie Bezos attend the Amazon Studios Oscar Celebration at Delilah on February 26, 2017 in West Hollywood, California. (Photo by Todd Williamson/Getty Images for Amazon) WEST HOLLYWOOD, CA - FEBRUARY 26: (L-R) CEO of Amazon Jeff Bezos and writer MacKenzie Bezos attend the Amazon Studios Oscar Celebration at Delilah on February 26, 2017 in West Hollywood, California. (Photo by Jerod Harris/Getty Images) HOLLYWOOD, CA - FEBRUARY 26: Jeff Bezos, Chief Executive Officer of Amazon (L) and MacKenzie Bezos attend the 89th Annual Academy Awards at Hollywood & Highland Center on February 26, 2017 in Hollywood, California. (Photo by Todd Williamson/Getty Images) BEVERLY HILLS, CA - JANUARY 08: Amazon Founder/CEO Jeff Bezos (L) and MacKenzie Bezos attend the Amazon Studios Golden Globes Party at The Beverly Hilton Hotel on January 8, 2017 in Beverly Hills, California. (Photo by Jerritt Clark/FilmMagic) WASHINGTON, DC - JANUARY 28: (L-R) Washington Post reporter and former Tehran bureau chief Jason Rezaian, U.S. Secretary of State John Kerry, Amazon founder and Washington Post owner Jeff Bezos and his wife MacKenzie Bezos participate in the opening ceremony of the newspaper's new location January 28, 2016 in Washington, DC. Kerry and Bezos worked to help free Rezaian after he spent 18 months in an Iranian prison after he was jailed and tried in secret for espionage. (Photo by Chip Somodevilla/Getty Images) BEVERLY HILLS, CA - JANUARY 10: Entrepreneur Jeff Bezos (R) and MacKenzie Bezos attend the 73rd Annual Golden Globe Awards held at the Beverly Hilton Hotel on January 10, 2016 in Beverly Hills, California.' (Photo by Michael Kovac/Getty Images for Moet & Chandon) LOS ANGELES, CA - SEPTEMBER 20: Founder and CEO of Amazon.com Jeff Bezos (L) and MacKenzie Bezos arrive at Amazon Video's 67th Primetime Emmy Celebration at The Standard Hotel on September 20, 2015 in Los Angeles, California. (Photo by Amanda Edwards/WireImage) NEW YORK, NY - MAY 07: Mackenzie Bezos (L) and Jeff Bezos, founder and chief executive officer of Amazon.com attend the 'Schiaparelli And Prada: Impossible Conversations' Costume Institute Gala at the Metropolitan Museum of Art on May 7, 2012 in New York City. (Photo by Dimitrios Kambouris/Getty Images) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

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