Khloe Kardashian Lamar Has Sworn Off Drugs ... And That's Why I Took Him Back

Lamar Odom won Khloe Kardashian back by convincing her he would never do drugs again after hitting rock bottom.

Our sources tell us, Lamar told Khloe over the weekend he knew he cheated death, promising, "I am done with drugs." He also thanked her profusely for coming to Vegas and supporting him. He repeatedly told her that he loved her, and that was enough.

We're told Khloe made the decision right then to drop the divorce and nurse Lamar back to health.

TMZ broke the story ... Khloe's lawyer, Laura Wasser, went to court Wednesday and got the judge to dismiss the divorce case.

That all said, we're told not everyone in the Kardashian family thinks Khloe's decision is sound, because they've heard this from Lamar before.