She's gotta be so pissed!

Lamar Odom is set to publish a tell-all book about his life, and the former NBA star will reveal details about what led to the end of his marriage to Khloe Kardashian. Don't we all know already that it was his drug use and cheating? Guess we'll find out straight from the horse's mouth.

“I”m very excited to work with BenBella Books, Inc. to release my very first book! My fans have always been the best and I really wanted to release this book to give you all a chance to get to know Lamar Odom and my real story, directly from me. I hope to [be] an inspiration to many that you can overcome adversity and challenge no matter where you fall from," he told Us Weekly.

The athlete will address his battle with substance abuse, his recovery from an overdose, and his tumultuous relationship with the E! starlet.

“He will also talk about … what really went on in those hospital doors and what the world didn’t get to see as well as rehab. We get to read about a side of Lamar Odom we never got to see on Keeping Up With the Kardashians or Khloe & Lamar nor on the basketball court," a source added.

We thought the K clan had iron-clad confidentiality agreements?