Khloe Kardashian and Lamar Odom cheating and divorce rumors are being talked about by fans everywhere in 2013. After Jennifer Richardson alleged an affair with the NBA star, a new report suggests he is using drugs and his marriage is on the rocks.

According to TMZ, the couple's marriage is in crisis because of Odom's reported hardcore drug abuse.

The basketball star has had a substance abuse problem for two years, multiple sources told the celebrity news site. Kardashian even had to pressure Odom to seek professional help in rehab.

In fact, Odom was so against the idea of getting treatment that Kardashian reportedly hired private investigators to look after him 24 hours a day, 7 days a week while he was at a San Diego facility. Kardashian had to persuade Odom to stay several times, but he ended up leaving after three weeks, TMZ reported.

The reality TV starlet is very focused on being there for her husband and fixing their marital problems, reportedly.

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

At the moment, Odom has allegedly slipped back into using recreational drugs after a stint of sobriety following rehab. The situation has become dire, with the family having staged an intervention to convince Odom to go back to rehab.

But the former Los Angeles Laker was not convinced that he needed to return to treatment, TMZ reported.

Kardashian is working on getting much-needed help for her husband. Neither spouse has contacted a divorce attorney despite the alleged drug problems and cheating scandal, which Kardashian reportedly does believe happened.

Tell us what you think about the latest news on Kardashian and Odom's marriage in the comments section below!