Khloe Kardashian knew her ex-husband Lamar Odom was cheating on her while they were married, the “Keeping Up with the Kardashians” star revealed in a teaser video for the reality-television show.

Hosted by E Online, the clip shows Khloe Kardashian making the revelation about her marriage to her older sister Kourtney Kardashian, saying she “had to lie to everyone” to cover it up.

“Do you know the interviews he’s doing?” the 30-year-old star asked her 35-year-old sister. “Saying that being married to me were the best years of his life and that he is now wearing his ring. F--- your ring, you were wearing it when you were f------ someone else, too!” she said.

Khloe Kardashian broke down in the video, saying: “The way I was living is not a way to live! 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!”

She admitted she even covered up the fact that the 34-year-old NBA player was with another woman on her birthday in 2013. “Let me tell you something. Last year on my birthday I lied to everyone,” she told her sister, “Because I had to lie and say I was with my husband when in fact my husband was missing with another girl!” As a result, she said: “I didn’t have a birthday. I was alone and lied to everyone.”

Khloe Kardashian, who is currently in a relationship with the rapper French Montana, married Odom four years ago. She filed for divorce amid rumors of his drug use and cheating last December.