There have been several rumors surrounding Khloe Kardashian and Lamar Odom's marriage. Their relationship has reportedly been on the rocks for a while now after several women came forward claiming they had an affair with the NBA player.

Now reports have surfaced that the cheating allegations isn't the only thing Kardashian is dealing with. According to TMZ, the marriage troubles could have stemmed from "hardcore drug abuse."

Several sources told the celebrity website that Odom has been dealing with his drug abuse for the past two years and it got so bad that his wife had to convince him to go to rehab. Reportedly he checked himself into a San Diego facility but he was so against going Kardashian hired private investigators to secretly stand guard at the door so he wouldn't leave.

The sources revealed that almost every day Odom would threaten to leave the facility but stuck with it for three weeks. After he left he stayed clean but after his season with the Clippers ended he began using drugs again.

It's not clear what drugs Odom has been allegedly using but the Kardashian family planned an intervention two days ago to convince him to check back into rehab. The athlete refused and TMZ reports that Kardashian kicked him out of the house.

A couple days ago, Odom was spotted loading luggage into a white Mercedes-Benz. Despite all the trouble the source told the website that the couple has not spoken to a lawyer and getting a divorce is the last thing on the "Keeping Up With the Kardashians" star's mind.

"Khloe is more concerned about saving Lamar than ending her marriage," the source said.