Khloe called "Kris very, very early on Wednesday morning after reading about Lamar's latest mistress coming forward," a family insider told Radar.
"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. 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."
What’s more, Radar has learned she even passed a polygraph test regarding the claims!
Polina alleges that she and Lamar first met on June 2 at L.A.’s Roosevelt Hotel and according to her, the NBA star had been living at the plush hotel for a week, at that point, as his marriage struggled.
“I was under the impression that he had left Khloe, and that’s why he was living at the Roosevelt,” Polina explained. “He acted completely available and we definitely had a mutual attraction.”
Their flirtation escalated during meetups at the Roosevelt over the next week, and by June 9, they had their first kiss.
On June 13, they consummated their relationship at Polina’s apartment, she claimed.
When other women in the past have claimed to have hooked up with Lamar, "Khloe didn't take it seriously. She is completely rattled that Jennifer took and passed a lie detector test," the source told Radar.
"Lamar hasn't been denying the affair as strongly as he did with others in the past. Khloe is literally feeling sick to her stomach. It's just gut wrenching to watch her go through this."