Teacher:In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Teacher: Now, understand the problem? Solve this instance: Kristen cheated because of Rob’s close friendship with actress Emilie de Ravin, claims sources! Read on for all the details and click the thumbnails to see more photos! 
  
 While everyone seems to be blaming Kristen Stewart for cheating on Robert Pattinson, Rob’s relationship with another woman may have drove her to act on her “momentary indiscretion.” 
  
  
  
 Sources close to Kristen, 22, claim she cheated on Rob, 26, because of jealousy over his friendship with ­his one-time co-star Emilie de Ravin. Rob reportedly became close to the LOST star, 30, while filming Remember Me in 2009. 
  
 The source said, “[Kristen] found it difficult to cope with Rob being close friends with another woman. As their friendship grew, she ­became more envious to the point that she would be very upset. They struck up their friendship when they were working away in New York and Kristen was still living in Los Angeles.” 
  
 But as we know, Rob has always been against cheating and he admits to not understanding the act of betrayal. His relationship with Emilie, 30, never grew into anything romantic. 
  
 The source continues, “Nothing romantic ever happened between them, but it didn’t make Kristen feel any better about them being so close. They would socialize together away from the set too. They would spend their evenings together in bars and restaurants while they were in New York.” 
  
 Emilie, who played Rob’s onscreen lover, said at the time, “[Rob’s] a lovely guy. I read the script three weeks before they started shooting. I flew to New York to test with Rob and we immediately got along. We had instant great chemistry, which is not an easy thing to come by.” 
  
 How do you feel about this new revelation? 
  
 Do YOU think Rob should give Kristen a second chance, HollywoodLifers? Vote below! 
  
 — Christopher Rogers 
  
 Follow @ChrisRogers86 
  
 More Rob & Kristen: ||||| Rupert Sanders K-Stew's Married Lover WEARING WEDDING RING 
  
 Rupert Sanders -- Kristen Stewart's Lover Surfaces With WEDDING RING [PHOTOS] 
  
 EXCLUSIVE 
  
 -- the philandering director who cheated on his wife with-- wants the world to know he's still married (at least for now) ... 'cause he's proudly sporting his wedding ring.Sanders finally emerged in L.A. just a few hours ago -- it's the first time we've seen him in public since those crazy scandalous photos emerged showing the "Snow White and the Huntsman" director -- and father of 2 -- making out with his lead actress ... who was also in a committed relationship withat the time.Sanders released a statement a few days ago ... begging his wife to not dump his adulterous ass. It's unclear if she's made a decision yet. ||||| By Jon Boon – Radar Reporter 
  
 While Robert Pattinson and Kristen Stewart didn’t have any kids together, RadarOnline.com exclusively reports that the fractured pair are embroiled in a bitter custody dispute, as they battle over their beloved adopted pooch! 
  
 On the pet front, Kristen, 22, will keep her cat, Max, but 26-year-old Robert wants Bear – the mixed mutt rescue they adopted from a high-kill shelter in New Orleans. 
  
 PHOTOS: Kristen Stewart Eyes Rupert Sanders At Dinner In May 
  
 But K-Stew won’t give up Bear without a fight, she’s especially fond of the dog after helping him fight the potentially fatal disease Parvo. 
  
 “After Rob moved his things out of their Los Angeles home, he then told Kristen he wanted Bear,” an insider said. 
  
 PHOTOS: Child Star To Bigscreen Bombshell Style! Kristen Stewart’s Transformation 
  
 “She was heartbroken – they adopted Bear together and she always felt that he was their little baby. 
  
 “But Rob was so hurt by Kristen’s actions he decided that he wants the dog to help him get over what happened. After all, a dog is a man’s best friend and Bear is such a good companion. 
  
 PHOTOS: Kristen Stewart And Chris Hemsworth On The Set Of Snow White And The Huntsman 
  
 “However, Kristen won’t give up Bear in a hurry. She helped Rob save Bear from Parvo disease, which nearly took its life when it was a puppy. 
  
 “She wants joint custody – and it could get a little messy,” the insider revealed. 
  
 PHOTOS: Robert Pattinson & Kristen Stewart At London Premiere Of Breaking Dawn 
  
 According to the close source, K-Stew and R-Patz were also looking into the possibility of adopting another rescue before their split – they were desperate for Bear to have a companion. 
  
 “Before news of the affair broke, Robert and Kristen were looking into the possibility of adopting another dog. They were desperate for a play pal for Bear and scoured petfinder.com, as well as a few high-kill shelters in Los Angeles. But it seems that’s out of the question now,” the insider said. 
  
 PHOTOS: Take A Look Inside Robert Pattinson And Kristen Stewart’s LA Love Nest 
  
 As RadarOnline.com previously reported, a U-Haul truck was pictured over the weekend pulling out of the driveway from the $6 million Los Feliz home they shared, which could spell the end of the couple’s broken relationship. 
  
 The pair are not on speaking terms and are living apart following the publication of photos that show Kristen canoodling with Snow and the Huntsman director Rupert Sanders. 
  
 PHOTO: Kristen Stewart Poses In Drag For Elle 
  
 R-Patz now wants a “man to man” chat with Sanders who also betrayed the young actor as they had become good friends and spent time together as couples with the director’s actress wife Liberty Ross. 
  
 RELATED STORIES: 
  
 Italian Filmmaker Defends Kristen Stewart: ‘There Was No On Set Affair’ 
  
 Kristen Stewart’s Affair With Director Went On For More Than Six Months Says Family Member 
  
  
  
 Brandi Glanville Goes On New Twitter Rant About Kristen Stewart Affair, Says Director To Blame Too 
  
 Moving Truck At Robert Pattinson And Kristen Stewart’s Home |||||
Student:
Robert Pattinson and Kristen Stewart are gearing up for an ugly custody battle … over a dog. Back in the halcyon days before Stewart cheated on Pattinson and broke the hearts of Twi-hards everywhere, the couple adopted a mutt named Bear from a shelter in New Orleans. "Rob was so hurt by Kristen’s actions he decided that he wants the dog to help him get over what happened," an insider helpfully tells Radar. "After all, a dog is a man’s best friend and Bear is such a good companion." But Stewart nursed Bear through Parvo and won't give him up easily. "She was heartbroken—they adopted Bear together and she always felt that he was their little baby," the insider continues. "She wants joint custody—and it could get a little messy." At least Kristen will get to keep her cat, Max. In other "RobSten" news, Hollywood Life reports that Pattinson actually drove Stewart to cheat. Kristen was jealous when Rob got close to Emilie de Ravin, his co-star in 2009's Remember Me. She "found it difficult to cope with Rob being close friends with another woman," a source says, despite the fact that Rob never got romantic with Emilie. As for the other couple involved, cheating director Rupert Sanders is still wearing his wedding ring.