So what did the Kardashian know and when did she know it? The emotional revelation comes in a clip from this Sunday's episode of her reality series, "Keeping Up With the Kardashians," in which her elder sister Kourtney Kardashian discusses Khloe's move out of the home she shared with Odom.
The 30-year-old admits that she hadn't been able to reach her husband of four years for months at a time and said she'd prefer that he not say anything about their relationship to the press because he gets her hopes up.
Though the conversation likely took place months ago, Kardashian specifically mentions an interview Odom gave in February when he signed with a Spanish basketball team and was doing the media rounds.
At the time, Odom said that he loved her and that she would "always be my wife." He also hoped that their divorce, which Kardashian filed for in December, wouldn't go through, and even if it did, he said, he would still consider Kardashian his wife. Odom added that his years with Kardashian were some of the "best years" of his life and that he had been wearing his wedding ring full-time.
Kardashian's response? "He's now wearing his ring full-time. [Expletive] your ring! ... You were wearing it when you were [sleeping with] someone too," she exclaims in the clip, publicly admitting for the first time that she knew of his infidelity.
Despite her anger, she says in a testimonial that she was glad he was admitting to his indiscretions.
"The way I was living is not a way to live!" she exclaims, blowing up again to her sister. "I kept in hiding every time there was something going on. I would have to lie, or conceal, or cover up, and I'm so over it!"
Kardashian says Odom was "delusional," and she admits that she knew of his questionable behavior from before her 29th birthday in June 2013.
"Let me tell you something," she shouts. "Last year on my birthday I lied to everyone because I had to lie and say I was with my husband when in fact my husband was missing with another girl! OK?! And I lied and I gave up my Beyoncé tickets to Kendall [Jenner]. That's how badly I was hiding and I didn't have a birthday. I was alone and lied to everyone."
The youngest of the famous sisterly trio filed for divorce in December following a spate of drug and infidelity rumors swirling around Odom. Several reports alleged that Kardashian knew of his cheating, but she never confirmed that, citing only "irreconcilable difference" in the court documents. Of course, divorce paperwork in California doesn't include a box to check for infidelity.
Incidentally, the former Lakers star's season was cut short in March because of a back injury.
These days, Kardashian has been dating rapper French Montana and spent her 30th birthday with him and her family in New York City being showered with lavish gifts. The couple has been linked since April, and she celebrated her birthday again on July 4 with Montana at Tao Las Vegas.
Maybe she's just making up for last year?
Admittedly, I too keep up with the Kardashians. Follow me @NardineSaad.