EXCLUSIVE: Kardashian family is 'mortified' by Rob's social media outburst, concerned about Dream, source says


The Kardashian family may be staying silent on Rob Kardashian's social media outburst on Wednesday, but they definitely have an opinion.

A source close to the family tells ET that they are "mortified" over Rob's behavior, but are mostly concerned for his and Blac Chyna's 7-month-old daughter, Dream.

RELATED: Rob Kardashian and Blac Chyna's NSFW Feud: Here's Everything You Need to Know!

"What happened was so low and inappropriate. It's very frustrating to deal with a person who can't control himself," the source says. "His family and close friends asked him to stop posting yesterday, but he wouldn't listen. He won't listen to anyone. The family can only do or say so much."

The most embarrassed of the family is Rob's mom, Kris Jenner, the source says.

See photos of Rob and Chyna together:

23 PHOTOS
Rob Kardashian and Blac Chyna together
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Rob Kardashian and Blac Chyna together
NEW YORK, NY - APRIL 14: Rob Kardashian and Blac Chyna are seen on April 14, 2016 in New York City. (Photo by XPX/Star Max/GC Images)
NEW YORK, NY - APRIL 14: Rob Kardashian and Blac Chyna are seen on April 14, 2016 in New York City. (Photo by XPX/Star Max/GC Images)
ATLANTA, GA - MARCH 27: Blac Chyna and Rob Kardashian at Onyx Nightclub on March 27, 2016 in Atlanta, Georgia. (Photo by Prince Williams/WireImage)
ATLANTA, GA - MARCH 27: Rob Kardashian and Blac Chyna at Onyx Nightclub on March 27, 2016 in Atlanta, Georgia. (Photo by Prince Williams/WireImage)
ATLANTA, GA - MARCH 27: Blac Chyna and Rob Kardashian at Onyx Nightclub on March 27, 2016 in Atlanta, Georgia. (Photo by Prince Williams/WireImage)
ATLANTA, GA - MARCH 27: Blac Chyna and Rob Kardashian at Onyx Nightclub on March 27, 2016 in Atlanta, Georgia. (Photo by Prince Williams/WireImage)
LOS ANGELES, CA - APRIL 18: Rob Kardashian and Blac Chyna are seen at LAX on April 18, 2016 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)
LOS ANGELES, CA - APRIL 26: Kim Kardashian, Rob Kardashian, and Blac Chyna are seen on April 26, 2016 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
LOS ANGELES, CA - APRIL 26: Kim Kardashian, Rob Kardashian, and Blac Chyna are seen on April 26, 2016 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
LOS ANGELES, CA - MARCH 14: Rob Kardashian and Blac Chyna are seen at LAX Airport in Los Angeles, Ca on March 14, 2016 in Los Angeles, California. (Photo by Light Brigade/Bauer-Griffin/GC Images)
ATLANTA, GA - MARCH 27: Blac Chyna and Rob Kardashian at Onyx Nightclub on March 27, 2016 in Atlanta, Georgia. (Photo by Prince Williams/WireImage)
ATLANTA, GA - MARCH 27: Rob Kardashian and Blac Chyna at Onyx Nightclub on March 27, 2016 in Atlanta, Georgia. (Photo by Prince Williams/WireImage)
LOS ANGELES, CA - MARCH 14: Rob Kardashian and Blac Chyna is seen at LAX on March 14, 2016 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)
ROB & CHYNA -- Season:1 -- Pictured: (l-r) Rob Kardashian, Blac Chyna -- (Photo by: Tommy Garcia/E! Entertainment/NBCU Photo Bank via Getty Images)
LAS VEGAS, NV - MAY 28: Television personality Rob Kardashian (L) and model Blac Chyna attend the Sky Beach Club at the Tropicana Las Vegas on May 28, 2016 in Las Vegas, Nevada. (Photo by Gabe Ginsberg/Getty Images)
LAS VEGAS, NV - MAY 28: Model Blac Chyna (L) and television personality Rob Kardashian attend the Sky Beach Club at the Tropicana Las Vegas on May 28, 2016 in Las Vegas, Nevada. (Photo by Gabe Ginsberg/Getty Images)
LAS VEGAS, NV - MAY 28: Television personality Rob Kardashian (L) and model Blac Chyna attend the Sky Beach Club at the Tropicana Las Vegas on May 28, 2016 in Las Vegas, Nevada. (Photo by Gabe Ginsberg/Getty Images)
HOLLYWOOD, CA - MAY 10: Blac Chyna and Rob Kardashian attend Blac Chyna's birthday celebration and unveiling of her 'Chymoji' Emoji Collection at Hard Rock Cafe on May 10, 2016 in Hollywood, California. (Photo by JB Lacroix/WireImage)
HOLLYWOOD, CA - MAY 10: Blac Chyna and Rob Kardashian attend Blac Chyna's birthday celebration and unveiling of her 'Chymoji' Emoji Collection at Hard Rock Cafe on May 10, 2016 in Hollywood, California. (Photo by JB Lacroix/WireImage)
HOLLYWOOD, CA - MAY 10: Rob Kardashian and Blac Chyna arrive at her Blac Chyna Birthday Celebration And Unveiling Of Her 'Chymoji' Emoji Collection at the Hard Rock Cafe on May 10, 2016 in Hollywood, California. (Photo by Greg Doherty/Getty Images)
HOLLYWOOD, CA - MAY 10: Blac Chyna (L) and Rob Kardashian arrive for her Blac Chyna's birthday celebration and unveiling of her 'Chymoji' Emoji Collection at Hard Rock Cafe, Hollywood, CA on May 10, 2016 in Hollywood, California. (Photo by Gabriel Olsen/WireImage)
HOLLYWOOD, CA - MAY 10: Rob Kardashian and Blac Chyna arrive at her Blac Chyna Birthday Celebration And Unveiling Of Her 'Chymoji' Emoji Collection at the Hard Rock Cafe on May 10, 2016 in Hollywood, California. (Photo by Greg Doherty/Getty Images)
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"Kris never publicly defamed Cailtyn in their relationship or what happened after. She never said one unpleasant thing about Caitlyn in the media. Kris handled that situation with class, and she was hoping Rob would follow that example," ET's source reveals. "Kris has done so much for Rob, but no one knows what else they can do for him anymore."

The source says Rob was alone in his own home in the Calabasas, California, area when he took to Instagram and Twitter on Wednesday, accusing Chyna of cheating on him multiple times. The 30-year-old reality star also shared several nude photos allegedly of his ex-fiancee, and claimed to have been paying for her rent, cars and $100,000 worth of surgery after she gave birth to Dream.

RELATED: Blac Chyna's Lawyer Exploring 'Legal Remedies' After Model's Social Media War With Rob Kardashian

According to ET's source, Dream is the family's No. 1 priority.

See photos of Kris Jenner:

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Kris Jenner
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Kris Jenner
HOLLYWOOD, CA - JANUARY 26: TV Peronality Kris Jenner on Hollywood Today LIVE, the nationally syndicated daytime entertainment talk and variety show. She revealed the secret to managing the careers of her six famous kids and how she went from mom to 'momager'. on January 26, 2016 in Hollywood, California. (Photo by Tommaso Boddi/Getty Images for Hollywood Today Live)
CENTURY CITY, CA - DECEMBER 10: Kris Jenner attends Pioneer Awards Honoring Terry Semel on December 10, 1990 at the Century Plaza Hotel in Century City, California. (Photo by Ron Galella, Ltd./WireImage)
DUNN'S RIVER, JAMAICA - SEPTEMBER 29: Kris Jenner and Bruce Jenner attend Dunn's River Celebrity Sports Invitational on September 29, 1993 at the Sandals Resort in Dunn's River, Jamaica. (Photo by Ron Galella, Ltd./WireImage)
LOS ANGELES - AUGUST 28: Kris Jenner attends the '56th Annual LA Area Emmy Awards ' at the Academy of Television Arts and Sciences August 28, 2004 in Los Angeles, California. (Photo by Mark Mainz/Getty Images)
CULVER CITY, CA - MARCH 21: Kris Jenner attends Mercedes Benz Fashion Week held at Smashbox Studios on March 21, 2007 in Culver City, California. (Photo by Mark Davis/Getty Images)

LOS ANGELES, CA - OCTOBER 28: TV personality Kris Jenner attends the signing for 'In The Kitchen With Kris.'

Credit: Chelsea Lauren via Getty Images

WESTLAKE VILLAGE, CA- OCTOBER 25: TV personality Kris Jenner signs copies of her new book 'In The Kitchen With Kris.'

(Photo by Jeffrey Mayer/WireImage)

RIDGEWOOD, NJ - OCTOBER 21: Kris Jenner signs copies of her cookbook 'In the Kitchen With Kris' at Bookends Bookstore on October 21, 2014 in Ridgewood, New Jersey. (Photo by Michael N. Todaro/WireImage)
NEW YORK, NY - OCTOBER 20: Kris Jenner attends Angel Ball 2014 hosted by Gabrielle's Angel Foundation at Cipriani Wall Street on October 20, 2014 in New York City. (Photo by Dimitrios Kambouris/Getty Images for Gabrielle's Angel Foundation)
LOS ANGELES, CA - OCTOBER 17: Kris Jenner is seen on October 17, 2014 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
LOS ANGELES, CA - OCTOBER 09: Television personality Kris Jenner attends Charlotte Tilbury's 'Make-up Your Destiny' beauty festival at Nordstrom at the Grove on October 9, 2014 in Los Angeles, California. (Photo by Imeh Akpanudosen/Getty Images)
LOS ANGELES, CA - OCTOBER 09: TV personalities Kim Kardashian and Kris Jenner attend 'Charlotte Tilbury arrives in America: VIP Beauty Launch Event' presented by Nordstrom at The Grove on October 9, 2014 in Los Angeles, California. (Photo by Donato Sardella/Getty Images for Charlotte Tilbury/Nordstrom)
CULVER CITY, CA - OCTOBER 08: TV personality Kris Jenner attends the fifth annual PSLA Autumn Party benefiting Childrens Institute, Inc., sponsored by Saks Fifth Avenue, with fashion partner Donna Karan at 3Labs on October 8, 2014 in Culver City, California. (Photo by Angela Weiss/Getty Images)
PARIS, FRANCE - SEPTEMBER 30: (L-R) Justin Bieber, Kendall Jenner and Kris Jenner attend the CR Fashion Book Issue No.5 Launch Party hosted by Carine Roitfeld and Stephen Gan at The Peninsula Paris on September 30, 2014 in Paris, France. (Photo by Kristy Sparow/WireImage)
PARIS, FRANCE - SEPTEMBER 30: Kris Jenner arrives at the Chanel show during Paris Fashion Week, Womenswear SS 2015 on September 30, 2014 in Paris, France. (Photo by Jacopo Raule/GC Images)
PARIS, FRANCE - SEPTEMBER 28: (L-R) Kim Kardashian, Kanye West, their daughter North West, Mother of Kim Kardashian, Kris Jenner and Fashion designer Riccardo Tisci pose backstage after the Givenchy show as part of the Paris Fashion Week Womenswear Spring/Summer 2015 on September 28, 2014 in Paris, France. (Photo by Bertrand Rindoff Petroff/French Select/Getty Images)
PARIS, FRANCE - SEPTEMBER 25: Kris Jenner, Kim Kardashian and Kanye West attend the Balmain show as part of the Paris Fashion Week Womenswear Spring/Summer 2015 on September 25, 2014 in Paris, France. (Photo by Antonio de Moraes Barros Filho/WireImage)
PARIS, FRANCE - SEPTEMBER 25: Kris Jenner arrives at the 'Art District' apartments on September 25, 2014 in Paris, France. (Photo by Marc Piasecki/GC Images)
PARIS, FRANCE - SEPTEMBER 24: Giancarlo Giammetti, Kendall Jenner and Kris Jenner attend the Buro 24/7 Fashion Forward Initiative Presenting Natalia Alaverdian, Founder and Creative Director of A.W.A.K.E. at The Peninsula Hotel on September 24, 2014 in Paris, France. Event is hosted by Kim Kardashian, Miroslava Duma, and Melvin Chua. (Photo by Victor Boyko/WireImage)
LOS ANGELES, CA - SEPTEMBER 22: Kris Jenner seen at LAX on September 22, 2014 in Los Angeles, California. (Photo by GVK/Bauer-Griffin/GC Images)
BEVERLY HILLS, CA - SEPTEMBER 13: TV personality Kris Jenner attends the Brent Shapiro Foundation for Alcohol and Drug Awareness' annual 'Summer Spectacular Under The Stars' at a private residence on September 13, 2014 in Beverly Hills, California. (Photo by David Livingston/Getty Images)
NEW YORK, NY - SEPTEMBER 10: Kris Jenner is seen on September 10, 2014 in New York City. (Photo by NCP/Star Max/GC Images)
LOS ANGELES, CA - AUGUST 27: Kris Jenner and Dean Cain are seen on August 27, 2014 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
LOS ANGELES, CA - AUGUST 06: Kris Jenner is seen in Calabasas on August 06, 2014 in Los Angeles, California. (Photo by Bauer-Griffin/GC Images)
LOS ANGELES, CA - JULY 11: Kris Jenner is seen on July 11, 2014 in Los Angeles, California. (Photo by SMXRF/Star Max/GC Images)
NEW YORK, NY - JUNE 27: Kris Jenner is seen on June 27, 2014 in New York City. (Photo by NCP/Star Max/GC Images)
NEW YORK, NY - JUNE 27: Kris Jenner and Kourtney Kardashian are seen at Khloe Kardashian 30th birthday at pier 61on June 27, 2014 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - JUNE 27: (L-R)Kris Jenner,Kendall Jenner, Kourtney Kardashian,Kylie Jenner,Kim Kardashiain on there way to Khloe Kardashian 30th birthday parte at pier 61,on June 27, 2014 in New York City. (Photo by Raymond Hall/GC Images)
TODAY -- Pictured: (l-r) Kathie Lee Gifford, Kris Jenner and Hoda Kotb appear on NBC News' 'Today' show -- (Photo by: Peter Kramer/NBC/NBC NewsWire via Getty Images)
NEW YORK, NY - JUNE 05: (EXCLUSIVE COVERAGE) TV Personality Kris Jenner, wearing a Valentino dress, visits the SiriusXM Studios on June 5, 2014 in New York City. (Photo by Astrid Stawiarz/Getty Images)
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"Everyone's main concern is Dream. At the end of the day, Chyna is Dream's mother, and she will always be in the picture, so it doesn't matter what Rob thinks of her or what she's done to him," the source says. "The comments, pictures and videos he posted yesterday will live on the internet forever, [and] one day, Dream will see what her dad said and did to her mother."

Despite Rob's claims that Chyna was unfaithful, a source tells ET that the two "haven't been together in a really long time."

"Chyna has been keeping him to the side for a long time. Whenever she needs something, she'll call Rob, and unfortunately, he keeps sticking around hoping that they can get back to the good spot they once were in. He won't realize that what they had will never be there again," the source reveals. "Chyna will also never change. Chyna needs Rob for many things -- mainly financial. But no matter what Chyna ever did to Rob, this is about Rob being a responsible person and a good father."

RELATED: Tyga and King Enjoy a Father-Son Brunch Amid Blac Chyna's Social Media Drama With Rob Kardashian

The Kardashian family is still grateful for the good things Chyna did for Rob, however. "Chyna was responsible for him getting out of his depression and changing his life," the source explains. "Before her, he was in such a bad place."

Reporting by Jennifer Peros.

Wednesday's outburt isn't the first time Rob and Chyna have made headlines throughout their relationship. Relive their most dramatic moments in the video below.


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