By Jen Heger - Breaking Celebrity News Assistant Managing Editor

Khloe Kardashian has been telling friends and family for several weeks that her husband, Lamar Odom, has been depressed since the Los Angeles Lakers traded him to the Dallas Mavericks last year, Breaking Celebrity News is exclusively reporting.

As previously reported Odom is done in Dallas. "The Mavericks and I have mutually agreed that it's in the best interest of both parties for me to step away from the team," Odom said in a statement to ESPN. "I'm sorry that things didn't work out better for both of us, but I wish the Mavs' organization, my teammates and Dallas fans nothing but continued success in the defense of their championship."

Even though Khloe embraced the move to Dallas, Lamar never found his footing with the Dallas Mavericks.  "Lamar hasn't gotten over being traded from the Lakers, and he has been depressed and moody ever since the trade happened. Lamar felt that he was ripped away from his Laker family with no warning or notice. He couldn't fathom the fact that the Lakers traded him after all of his years with the team," a source close to the couple tells Breaking Celebrity News. "Khloe has been extremely supportive of Lamar, but she is growing increasingly concerned for her husband because she has never seen him like this before."

The veteran forward will be on the inactive list for the rest of the year, leaving Mark Cuban's organization with the option to trade him if they so choose.

Lamar, 32, easily had the worst season of his career in Big D, averaging a paltry 6.6 points-per-game and 4.2 rebounds-per-game in 50 games with the league's reigning champs. After a phenomenal year in 2010-2011,