From TMZ’s report:
The marriage of Khloe Kardashian and Lamar Odom is in crisis, and TMZ has learned … the core reason is hardcore drug abuse.
Multiple sources familiar with the situation tell TMZ … Lamar has had a problem for 2 years. It got so bad, last August Khloe pressured Lamar to go to rehab. Lamar went to a facility in San Diego, but he was so resistant Khloe hired private investigators to secretly stand guard at the rehab place to make sure he didn’t leave. The P.I.s stood guard 24/7.
We’re told the situation has become dire. Sources tell us … within the last 2 days, the entire family staged an intervention, trying to convince Lamar to go back to rehab, but he wouldn’t have any of it.