"Keeping Up with the Kardashians" star Kourtney Kardashian has suffered an emotionally difficult past couple of months. In a video clip for "KUWTK's" new Season 10 episodes, the 35-year-old breaks down in tears after learning that her former boyfriend Scott Disick was canoodling with his ex-girlfriend and Los Angeles-based stylist Chloe Bartoli in France over the summer.

Also in the sneak peek, Kris Jenner is browsing tabloid photos of Disick on vacation with Bartoli when she exclaims, "What a piece of s-t!"

In an emotional scene, Kardashian tells her younger sister Kim Kardashian, "I've worked so hard to keep this family together," as she whips tears from her eyes.

Kourtney ended her nine-year tumultuous relationship with Disick in July following his romp with Bartoli, but The Lord allegedly had affairs with more women.

In April, Latin Post reported that Disick's former friend and manager David Weintraub said the father of three suffers from a cocaine addiction, regularly cheated on Kourtney with numerous women, and his habits "are far more severe than the public realizes."

Latin Post reported in July that Kourtney's famous family is fed up with Disick's behavior. While they want him to be an active father, they want the couple's breakup to be permanent.

"Kourtney's family feels she deserves so much better than Scott's crappy behavior," a "Keeping Up with the Kardashians" production source told People in July. "They urge her to never take him back."

One look at her Instagram account, and it seems that she has done just that. The mother of three is moving on with her life. She's dedicated to fitness, enjoys girls' night out, gets plenty of support from her family and has been traveling.

Currently, she's on vacation in Montana with friends, and she looks incredibly happy.

Disick, on the other hand, is fed up with the backlash he continues to receive via social media. The Lord posted a meme to Instagram on Wednesday in which he's dressed in a suit sipping tea. The meme text reads, "#stoptalkingpeasant," and he captioned the post, "Just stop."

Watch the video and catch "Keeping Up with the Kardashians" on Sunday at 8 p.m. ET on E!