Yolanda Foster says she felt blindsided by David Foster divorce, doesn't regret signing prenup

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Yolanda Foster Seemingly Blames Herself for Divorce

Yolanda Foster knows the exact date her marriage to David Foster ended.

The 52-year-old Real Housewives of Beverly Hills star appeared on Bravo's Watch What Happens Live on Tuesday, where she candidly answered questions about her split from Foster after four years of marriage.

"I know exactly the day -- November 15," Yolanda told host Andy Cohen about the day they decided to divorce, which they publicly announced two weeks later on Dec. 1. "It was a conversation, yeah."

WATCH: Inside Yolanda and David Foster's Shocking Split -- 'Distance and Her Illness' Drove Them Apart

The mother-of-three also confirmed that she signed a prenup prior to tying the knot, but had no regrets.

"I married for love, not for money," she stressed.

Although, she didn't exactly see the divorce coming.

"Yeah, I didn't think that was the end of the road," she admitted. "I would have hoped to wait until I got 100 percent well."

See photos of the former couple:

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Yolanda Foster says she felt blindsided by David Foster divorce, doesn't regret signing prenup
Yolanda Hadid and David Foster during 14th Annual Race to Erase MS Themed 'Dance to Erase MS' - Red Carpet at Hyatt Regency Century Plaza in Century City, California, United States. (Photo by Lester Cohen/WireImage for PMK/HBH)
Yolanda Hadid and David Foster during George Lopez Hosts National Kidney Foundation Gala - Inside in Los Angeles, California, United States. (Photo by Amy Graves/WireImage)
WEST WOOD, CA - JULY 28: Yolanda and David Foster attend the Grammy Foundation's 'Starry Night' gala under the stars honoring Quincy Jones with the Grammy Foundations Leadership Award in recognition of his work both musically and philanthropically at Strauss Stadium on the UCLA Campus on July 28, 200f7 in Westwood, California. (Photo by John M. Heller/Getty Images)
LAS VEGAS - OCTOBER 05: Music producer David Foster and girlfriend Yolanda Hadid pose at the Distinctive Assets Gift Lounge held during Andre Agassi's 12th Annual Grand Slam for Children at the MGM Grand Garden Arena on October 5, 2007 in Las Vegas, Nevada. (Photo by Charley Gallay/Getty Images for Distinctive Assets)
LAS VEGAS - OCTOBER 05: Music producer David Foster and girlfriend Yolanda Hadid enjoy the Spa Costa Del Sur display Distinctive Assets Gift Lounge held during Andre Agassi's 12th Annual Grand Slam for Children at the MGM Grand Garden Arena on October 5, 2007 in Las Vegas, Nevada. (Photo by Charley Gallay/Getty Images for Distinctive Assets)
LAS VEGAS - OCTOBER 05: Music producer David Foster and girlfriend Yolanda Hadid pose at the Distinctive Assets Gift Lounge held during Andre Agassi's 12th Annual Grand Slam for Children at the MGM Grand Garden Arena on October 5, 2007 in Las Vegas, Nevada. (Photo by Charley Gallay/Getty Images for Distinctive Assets)
LAS VEGAS - OCTOBER 05: Music producer David Foster and girlfriend Yolanda Hadid enjoy the Spa Costa Del Sur display Distinctive Assets Gift Lounge held during Andre Agassi's 12th Annual Grand Slam for Children at the MGM Grand Garden Arena on October 5, 2007 in Las Vegas, Nevada. (Photo by Charley Gallay/Getty Images for Distinctive Assets)
David Foster and Yolanda at the Andrea Bocelli and David Foster Celebrate a Special Evening event at The Bon Appetit Supper Club on November 1, 2007 in New York City. (Photo by Brian Ach/WireImage)
LOS ANGELES, CA - FEBRUARY 08: Music producer David Foster (L) and girlfriend Yolanda Hadid arrive at the 2008 MusiCares person of the year honoring Aretha Franklin held at the Los Angeles Convention Center on February 8, 2008 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
LAS VEGAS - OCTOBER 11: Producer/composer David Foster (R) and wife model Yolanda Hadid arrive at the 13th annual Andre Agassi Charitable Foundation's Grand Slam for Children benefit concert at the Wynn Las Vegas October 11, 2008 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
BEVERLY HILLS, CA - OCTOBER 25: Yolanda Hadid and songwriter David Foster arrive at the 30th anniversary Carousel of Hope Ball to benefit the Barbara Davis center for childhood diabetes held at the Beverly Hilton Hotel on October 25, 2008 in Beverly Hills, California. (Photo by Stephen Shugerman/Getty Images)
BEVERLY HILLS, CA - FEBRUARY 22: Yolanda Hadid and David Foster attend the 1st Annual Night To Make a Difference At Mr. Chow on February 22, 2009 in Beverly Hills, California (Photo by John M. Heller/Getty Images)
PHOENIX - MARCH 28: Songwriter David Foster (L) and Yolanda Hadid pose during Muhammad Ali's Celebrity Fight Night XV held at the JW Marriott Desert Ridge Resort & Spa on March 28, 2009 in Phoenix, Arizona. (Photo by Stefanie Keenan/Getty Images for Celebrity Fight Night)
MALIBU, CA - APRIL 21: Songwriter David Foster (R) and Yolanda Hadid attend the Malibu Lumber Yard grand opening held at the Malibu Lumber Yard on April 21, 2009 in Malibu, California. (Photo by John Shearer/WireImage)
Songwriter David Foster (R) and Yolanda Hadid arrive at the UNICEF Ball held at the Beverly Wilshire Hotel on December 10, 2009 in Beverly Hills, California. (Photo by John Shearer/WireImage)
BEVERLY HILLS, CA - JANUARY 30: Producer David Foster and wife Yolanda Foster arrive at the 52nd Annual GRAMMY Awards - Salute To Icons Honoring Doug Morris held at The Beverly Hilton Hotel on January 30, 2010 in Beverly Hills, California. (Photo by Larry Busacca/Getty Images for NARAS)
PHOENIX - MARCH 19: Producer David Foster (L) and Yolanda Hadid attend the Celebrity Fight Night XVI Founder's Dinner held at JW Marriott Desert Ridge Resort on March 19, 2010 in Phoenix, Arizona. (Photo by Stefanie Keenan/Getty Images for Celebrity Fight Night)
LAS VEGAS - OCTOBER 09: Yolanda Hadid, musician/music producer David Foster, and Bella Hadid arrive at the Andre Agassi Foundation for Education's 15th Grand Slam for Children benefit concert at the Wynn Las Vegas October 9, 2010 in Las Vegas, Nevada. The event raises funds to help improve education for underserved youth in the Las Vegas community. (Photo by Ethan Miller/Getty Images)
David Foster (R) and Yolanda Hadid attend the 2011 MusiCares Person of the Year at Los Angeles Convention Center on February 11, 2011 in Los Angeles, California.
BEVERLY HILLS, CA - FEBRUARY 12: Yolanda Hadid (L) and producer David Foster arrive at the 2011 Pre-GRAMMY Gala and Salute To Industry Icons Honoring David Geffen at Beverly Hilton on February 12, 2011 in Beverly Hills, California. (Photo by Jeff Kravitz/FilmMagic)
Honoree David Foster (2ndL) holding the BMI Icon Award, Yolanda Hadid and family attend the 59th Annual BMI Pop Awards at the Beverly Wilshire Four Seasons Hotel on May 17, 2011 in Beverly Hills, California. (Photo by Frazer Harrison/WireImage)
LOS ANGELES, CA - SEPTEMBER 27: Yolanda Hadid (L) and songwriter David Foster attend the Los Angeles Philharmonic 'Rhapsody in Blue' opening night gala at Walt Disney Concert Hall on September 27, 2011 in Los Angeles, California. (Photo by David Livingston/Getty Images)
HOLLYWOOD, CA - OCTOBER 21: Yolanda H. Foster and David Foster attend the 'Real Housewives of Beverly Hills' Season 3 premiere party at Hollywood Roosevelt Hotel on October 21, 2012 in Hollywood, California. (Photo by Jason LaVeris/FilmMagic)
NEW YORK, NY - JANUARY 29: TV personality Yolanda Foster (L) and musician David Foster enters the 'Today Show' taping at the NBC Rockefeller Center Studios on January 29, 2013 in New York City. (Photo by Ray Tamarra/Getty Images)
LOS ANGELES, CA - FEBRUARY 08: Producer David Foster (R) and model Yolanda Hadid arrive at he 2013 MusiCares Person Of The Year Gala Honoring Bruce Springsteen at Los Angeles Convention Center on February 8, 2013 in Los Angeles, California. (Photo by Jason Kempin/Getty Images)
BEVERLY HILLS, CA - FEBRUARY 09: Model Yolanda Hadid (L) and music producer David Foster arrive at Clive Davis & The Recording Academy's 2013 Pre-GRAMMY Gala and Salute to Industry Icons honoring Antonio 'L.A.' Reid at The Beverly Hilton Hotel on February 9, 2013 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images)
LOS ANGELES, CA - FEBRUARY 10: Producer David Foster (2nd from right) and Yolanda Foster (2nd from lef) and guests arrive at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
PHOENIX, AZ - MARCH 23: TV Personality Yolanda Hadid and Producer David Foster attend Muhammad Ali's Celebrity Fight Night XIX at JW Marriott Desert Ridge Resort & Spa on March 23, 2013 in Phoenix, Arizona. (Photo by Michael Buckner/Getty Images for Fight Night)
LOS ANGELES, CA - JANUARY 25: Producer David Foster (R) and Yolanda Foster attend the Clive Davis And The Recording Academy's 2014 Pre-GRAMMY Gala at The Beverly Hilton on January 25, 2014 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
WEST HOLLYWOOD, CA - MARCH 02: Composer/producer David Foster (R) and tv personality Yolanda Foster attend Patron Tequila at 22nd Annual Elton John AIDS Foundation Academy Awards Viewing Party at The City of West Hollywood Park on March 2, 2014 in West Hollywood, California. (Photo by Jonathan Leibson/Getty Images for Patron)
PHOENIX, AZ - APRIL 12: Record producer David Foster (R) and Yolanda Foster attend Muhammad Ali's Celebrity Fight Night XX held at the JW Marriott Desert Ridge Resort & Spa on April 12, 2014 in Phoenix, Arizona. (Photo by Ethan Miller/Getty Images for Celebrity Fight Night)
LOS ANGELES, CA - APRIL 17: Yolanda Foster and David Foster attend an HBO premiere of an exclusive presentation of 'Billy Crystal 700 Sundays' at Ray Kurtzman Theater on April 17, 2014 in Los Angeles, California. (Photo by FilmMagic.com/FilmMagic for HBO)
FLORENCE, ITALY - SEPTEMBER 07: David Foster and Yolanda Foster attend 'Celebrity Fight Night In Italy' Gala at the Palazzo Vecchio on September 7, 2014 in Florence, Italy. (Photo by Venturelli/Getty Images)
BEVERLY HILLS, CA - OCTOBER 11: TV personality Yolanda Foster (L) and music producer David Foster attend the 2014 Carousel of Hope Ball presented by Mercedes-Benz at The Beverly Hilton Hotel on October 11, 2014 in Beverly Hills, California. (Photo by Kevin Winter/Getty Images)
BEVERLY HILLS, CA - OCTOBER 25: Actor David Foster (R) and Tv personality Yolanda Foster attend The Caritas Gala Honoring David & Yolanda Foster at the Beverly Wilshire Four Seasons Hotel on October 25, 2014 in Beverly Hills, California. (Photo by JC Olivera/WireImage)
GOLETA, CA - DECEMBER 06: Yolanda Foster and David Foster attend the 'Selma' and the Legends Who Paved the Way gala at Bacara Resort on December 6, 2014 in Goleta, California. (Photo by Jason LaVeris/FilmMagic)
NEW YORK, NY - OCTOBER 08: Yolanda Foster (L) and David Foster attend the Global Lyme Alliance 'Uniting for a Lyme-Free World' Inaugural Gala at Cipriani 42nd Street on October 8, 2015 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Global Lyme Alliance)
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Yolanda was diagnosed with Lyme disease in 2012, and has been open about her health struggles. In December, she admitted to Cohen in another WWHL appearance that her disease "changed the dynamic" of her marriage to the GRAMMY award-winning musician.

"Unfortunately it was not strong enough to withstand the circumstances that came our way," Yolanda said. "Chronic long term illness is extremely challenging, not only for the person that's sick, but also for the caregiver. It for sure changed the dynamic of our relationship."

Still, her ex has defended her when it comes to her health. In a statement to ET in December, David said he was "frustrated" over headlines questioning the reality star's sickness.

"I have been by Yolanda's side over the past four years to the best of my ability as she battled with the complexities of her Lyme diagnosis," he said. "I am incredibly proud of Yolanda's determination and mission to find a cure, and how brave and open she has been by sharing her story in the hopes of changing the future for others."

WATCH: Yolanda Foster Reveals How Bella Hadid's Battle With Lyme Disease Shattered Her Olympic Dreams

ET chatted with David, 66, last month, who said that he and Yolanda are getting along just fine since the split.

"Her and I are really good," he said on the red carpet at UCLA's Institute of the Environment and Sustainability Gala. "I feel OK about it, and I'm just happy to be here. I'm fine being by myself."

Watch below:

EXCLUSIVE: David Foster Says He and Yolanda Are 'Really Good'


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