Khloe Kardashian is alleged to be upset over reports claiming her husband of four years, Lamar Odom, was involved in an extramarital affair.
Polina Polonsky, who is a criminal defense attorney, recently made explosive claims about Kardashian and Odom's marriage after claiming that she and the NBA star were involved in a relationship. Polonsky shared details of the alleged affair and Kardashian, who is yet to respond to the unconfirmed reports, reportedly broke down over the claims.
"[Khloe called] Kris [Jenner] very, very early on Wednesday morning after reading about Lamar's latest mistress coming forward," a family insider allegedly told RadarOnline.com.
"She has been crying hysterically. Kris has been trying to calm her down, but Khloe seems to know in her heart that Lamar has been indeed cheating on her," the insider said. "Lamar is Khloe's entire world, and she can't understand why he would cheat on her. It's really, really sad, because she loves him so much."
For months, the Hollywood couple has refused to address divorce rumors, but recent cheating allegations have only fueled tabloid speculation about their marriage.
Polonsky, who reportedly passed a lie detector test, claims that prior to the tryst she was led to believe that the 33-year-old father of two had ended his marriage to Kardashian, 29.
"I was under the impression that he had left Khloe ... He acted completely available," she told Star magazine.
This is the second time in the space of one month that the reality TV star couple has been hit with cheating claims.
In July, a woman identified as Jennifer Richardson also claimed to have engaged in an extramarital affair with Odom.
However, a report Thursday claimed there was absolutely no truth to the cheating scandal and that the NBA star is committed to Kardashian.
"Lamar isn't cheating. He doesn't have time to do that ... he wouldn't put himself out there like that," a source told HollywoodLife.com. "Khloe is the love of his life and he wouldn't do that to her. She gives him everything he wants and needs."