Khloe Kardashian And Lamar Odom's Marriage Crisis Linked To Hardcore Drug Abuse

Khloe Kardashian has reportedly thrown husband Lamar Odom out of the house due to his alleged drug abuse.

The couple have been subject to persistent rumours that their marriage is in trouble after Lamar, 33, allegedly cheated on Khloe, 29, with two different women. 

Khloe posted a tweet on Friday citing the importance of strength to survival:

 And earlier today she said:

 Lamar had posted a tweet last month supporting Khloe as claims of his infidelity surfaced:

But several sources have told TMZ the real reason behind their marriage crisis is that Khloe reportedly believes that her husband has a drug problem.

Earlier this week the Kardashian family allegedly staged an intervention to convince Lamar to return to rehab, but he refused, reports the gossip website. 

Khloe urged Lamar in August 2012 to go to rehab and after he entered a San Diego facility she hired private investigators to make sure he didn't leave.

Lamar reportedly constantly threatened to leave the rehab clinic and Khloe visited several times to convince him to stay, but he left after three weeks, sources said.

Lamar, who won two championships with the Los Angeles Lakers, stayed clean and played well last season for the Los Angeles Clippers, but sources said he resumed using drugs after the season.

Khloe was convinced of recent reports of Lamar's infidelity, but feels his drug abuse has been the main problem, the website reported.

Neither Khloe nor Lamar has contacted a divorce lawyer.

'Khloe is more concerned about saving Lamar than ending her marriage,' a source told TMZ.

Khloe allegedly tossed Lamar out of the house after the failed intervention, and he was pictured Wednesday as an associated loaded a number of large suitcases into his car in Calabasas, California.

Read more on Khloe and Lamar below:

• Meet The Woman Who Is Trying To Tear Khloe Kardashian's Marriage Apart (PHOTOS)
• Khloe Kardashian Kicks Out Lamar Odom After He’s Been Cheating On Her For Months

• See Photos Of Khloe Kardashian's Husband, Lamar Odom Sleeping In Court
• Why Khloe Kardashian's Husband, Lamar Odom Attacked A Paparazzi
• Lamar Odom Says Mistress, Jennifer Richardson Is An 'NBA Groupie' + Khloe Kardashian’s Secret Confrontation With Jennifer Richardson
• Khloe Kardashian's Husband Cheating Scandal: ANOTHER Mistress Reveals She Had Six Week Affair With Lamar
• Cheating Scandal: Lamar Odom Now Lives In A Hotel After Khloe Kardashian Kicked Him Out Of Their Home