Want more from Sunday TODAY? Catch up on our interviews and features here

Pop Culture

Reese and Ryan: Was there another woman?

To say that people were shocked by Reese Witherspoon and Ryan Phillippe’s sudden split would be an understatement.

But today, we find out what (or who) may have caused the breakup.

Just two weeks ago, Reese accompanied Ryan to his screening for “Flags of Our Fathers” in New York, where the couple reportedly fought bitterly at the after party.

Sadly, explosive new details are surfacing about Reese and Ryan’s troubled marriage, including reports of an alleged affair between Ryan and a young actress.

“Ryan did not go out of his way to hide the fact that he was having a fling with his co-star Abbie Cornish,” said Us Weekly’s Katrina Szish. “Besides the fact they were spotted making out in a sushi restaurant together, she was spotted many times leaving his loft apartment.”

According to Us Weekly, Ryan’s alleged affair with Cornish, a 24-year-old Australian actress, was common knowledge around Austin, Texas where the two were shooting the new film “Stop Loss.”

Abbie’s rep denies the affair and both Reese and Ryan’s people had no comment.

“Reese came across pictures of Ryan and Abbie together and she immediately confronted Ryan. He admitted having an affair. He said all of the rumors were true and said let’s just end this now,” Szish told Access Hollywood.

  • Slideshow Photos

    Neil P. Mockford / GC Images

    Image: Celebrity Sightings On The Set Of 'A Hundred Streets' - August 8, 2014

    Celebrity Sightings

    Jake Johnson and Damon Wayans Jr. on the "Let's Be Cops," red carpet, Selena Gomez is immortalized in wax and more.

  • Image: Celebrity Sightings On The Set Of 'A Hundred Streets' - August 8, 2014

    Celebrity Sightings

    of

    Idris Elba

    Actor Idris Elba seen on the set of :A Hundred Streets" on Aug. 8 in London.

    Getty Images / Getty Images
  • Image: Premiere Of RADiUS-TWC's "The One I Love" - Red Carpet

    Celebrity Sightings

    of

    Elisabeth Moss, Mark Duplass

    Actors Elisabeth Moss and Mark Duplass arrive at the premiere of RADIUS-TWC's "The One I Love" at the Vista Theatre on Aug. 7 in Los Angeles.

    Getty Images / Getty Images
  • Image: Premiere Of RADiUS-TWC's "The One I Love" - Red Carpet

    Celebrity Sightings

    of

    Nick Kroll

    Actor Nick Kroll arrives at the premiere of RADIUS-TWC's "The One I Love" at the Vista Theatre on Aug. 7 in Los Angeles.

    Getty Images / Getty Images
  • Image: BESTPIX: Premiere Of Twentieth Century Fox's "Let's Be Cops" - Red Carpet

    Celebrity Sightings

    of

    Damon Wayans Jr., Jake Johnson

    Actors Damon Wayans Jr. and Jake Johnson arrive at the premiere of "Let's Be Cops" at the Cinerama Dome on Aug. 7 in Los Angeles.

    Getty Images / Getty Images
  • Image: Cast member D'Arcy poses at the premiere of "Let's Be Cops" in Hollywood

    Celebrity Sightings

    of

    James D'Arcy

    James D'Arcy arrives at the premiere of "Let's Be Cops" at the Cinerama Dome on Aug. 7 in Los Angeles.

    Reuters / Reuters
  • Image: BESTPIX: Premiere Of Twentieth Century Fox's "Let's Be Cops" - Arrivals

    Celebrity Sightings

    of

    Julianne Hough

    Actress Julianne Hough arrives at the premiere of "Let's Be Cops" at the Cinerama Dome on Aug. 7 in Los Angeles.

    Getty Images / Getty Images
  • Image: Premiere Of Twentieth Century Fox's "Let's Be Cops" - Arrivals

    Celebrity Sightings

    of

    Hannah Simone

    Actress Hannah Simone arrives at the premiere of "Let's Be Cops" at the Cinerama Dome on Aug. 7 in Los Angeles.

    Getty Images / Getty Images
  • Image: Premiere Of Twentieth Century Fox's "Let's Be Cops" - Red Carpet

    Celebrity Sightings

    of

    Nina Dobrev

    Actress Nina Dobrev arrives at the premiere of "Let's Be Cops" at the Cinerama Dome on Aug. 7 in Los Angeles.

    Getty Images / Getty Images
  • Image: The Pump Group VIP Cocktail Reception

    Celebrity Sightings

    of

    Nicole Murphy, Brandy Norwood

    TV personality Nicole Murphy and singer Brandy Norwood attend The Pump Group VIP Cocktail Reception at W Hollywood on Aug. 7 in Hollywood.

    Getty Images / Getty Images
  • Image: The Pump Group VIP Cocktail Reception

    Celebrity Sightings

    of

    Tara Reid

    Actress Tara Reid attends The Pump Group VIP Cocktail Reception at W Hollywood on Aug. 7 in Hollywood.

    Getty Images / Getty Images
  • Image: "Phoenix" Opening Night

    Celebrity Sightings

    of

    James Wirt, Julia Stiles

    Actors James Wirt and Julia Stiles stand on stage during the opening night curtain call for "Phoenix" at the Cherry Lane Theatre on Aug. 7 in New York.

    Getty Images / Getty Images
  • Image: "Phoenix" Opening Night

    Celebrity Sightings

    of

    AnnaSophia Robb

    Actress AnnaSophia Robb attends the opening night performance of "Phoenix" at the Cherry Lane Theatre on Aug. 7 in New York.

    Getty Images / Getty Images
  • Image: BESTPIX: Madame Tussauds New York To Unveil New, Never-Before-Seen Selena Gomez Wax Figure

    Celebrity Sightings

    of

    Selena Gomez

    A boy gives the wax figure of Selena Gomez a kiss at the unveiling of the new new, never-before-seen Selena Gomez wax figure at Madame Tussauds New York on Aug. 7 in New York.

    Getty Images / Getty Images
  • Image: BESTPIX: Chris Martin Visits "The Elvis Duran Z100 Morning Show"

    Celebrity Sightings

    of

    Chris Martin

    Chris Martin of Coldplay performs during the Elvis Duran Z100 Morning Show at Z100 Studio on Aug. 7 in New York.

    Getty Images / Getty Images
  • Image: BESTPIX: Apple Store Soho Presents: Meet the Actors: Michael Fassbender And Domhnall Gleeson - "Frank"

    Celebrity Sightings

    of

    Michael Fassbender

    Actor Michael Fassbender attends "Meet the Actor" at Apple Store Soho on Aug. 7 in New York.

    Getty Images / Getty Images
  • Image: Celebrity Sightings In Los Angeles - August 07, 2014

    Celebrity Sightings

    of

    Mickey Rourke

    Actor Mickey Rourke is seen at "Jimmy Kimmel Live" on Aug. 7 in Los Angeles.

    Getty Images / Getty Images
  • Image: Celebrity Sightings In Los Angeles - August 07, 2014

    Celebrity Sightings

    of

    Jordana Brewster

    Actress Jordana Brewster waves outisde of "Jimmy Kimmel Live" on Aug. 7 in Los Angeles.

    Getty Images / Getty Images
  • Image: G. Garvin Live

    Celebrity Sightings

    of

    Keshia Knight Pulliam

    Actress Keshia Knight Pulliam attends G. Garvin Live at Buckhead Theatre on Aug. 7 in Atlanta.

    Getty Images / Getty Images
  • Image: Celebrity Sightings In Los Angeles - August 07, 2014

    Celebrity Sightings

    of

    Reese Witherspoon

    Actress Reese Witherspoon is seen on Aug. 7 in Los Angeles.

    Getty Images / Getty Images
  • Image: Miley Cyrus

    Celebrity Sightings

    of

    Miley Cyrus

    Singer Miley Cyrus performs in concert at Bridgestone Arena on Aug. 7 in Nashville.

    AP / AP
  • Image: 67th Locarno Film Festival - Day 2

    Celebrity Sightings

    of

    Melanie Griffith

    Actress Melanie Griffith attends a press conference during the 67th Locarno Film Festival on Aug. 7 in Locarno, Switzerland.

    Getty Images / Getty Images
  • Image: Lily Allen

    Celebrity Sightings

    of

    Lily Allen

    Singer Lily Allen performs in concert at Bridgestone Arena on Aug. 7 in Nashville.

    AP / AP
  • Image: "The Expendables 3" Paris Photocall At Cinema UGC Normandie

    Celebrity Sightings

    of

    'Expendables 3'

    The stars of "Expendables 3," from left, Kellan Lutz, Jason Statham, Sylvester Stallone, Antonio Banderas and Wesley Snipes attend "Expendables 3" at Cinema UGC Normandie on Aug. 7 in Paris.

    Getty Images / Getty Images
  • Image: Meet The FilmMakers: "The Rover"

    Celebrity Sightings

    of

    Robert Pattinson

    Actor Robert Pattinson speaks during the Meet The Filmmakers event for "The Rover" at Apple Store, Regent Street on Aug. 7 in London.

    Getty Images / Getty Images
  • Image: Celebrity Sightings In New York City - August 07, 2014

    Celebrity Sightings

    of

    Nicole Kidman, Jason Bateman

    Actors Nicole Kidman and Jason Bateman are spotted filming Bateman's "The Family Fang" in Westchester, New York, on Aug. 7.

    Getty Images / Getty Images
  • Image: Africa: New Partnership Models For Growth

    Celebrity Sightings

    of

    Akon

    Grammy-nominated artist Akon, who is the founder of Akon Lighting Africa Project, discusses at the US-Africa Leaders Summit "Africa: New Parnership Models for Growth" news conference, held in Washington, DC, on Aug. 7, the progress that African heads of state have made.

    Getty Images / Getty Images

Abbie, who some say actually resembles Reese, is an actress on the rise. She can be seen opposite Russell Crowe in the romantic comedy “A Good Year,” which hits theaters next week, and opposite Heath Ledger in the sexual drama “Candy” which opens November 17th.

Reese and Ryan, who have a 7-year-old daughter and a 3-year-old son, have been plagued by rumors of problems before. Just days after Reese’s big Oscar win in March, tabloids were reporting their marriage was in crisis.

“Reese has been holding onto this marriage for dear life, primarily because she loves her children,” Szish added.

Ironically, five out of the last eight best-actress Oscar winners split from their partners shortly after their big win.

This includes Hilary Swank, Halle Berry and Julia Roberts

Both Reese and Ryan have publicly admitted to receiving marriage counseling in the past.

“I don’t think there should be a social stigma attached to having therapy,” Reese told Access Hollywood in 2002. “It’s self improvement.”

In 1998, Access asked Reese if it was easier dating a fellow actor.

“I don’t know, all I can say is it’s great to be with Ryan. He understands me and I think that’s all you can ever ask for in a relationship,” she told us.

TOP