Houston Rockets superstar James Harden is reportedly tired of playing second fiddle to Lamar Odom as Khloe Kardashian continues to support her former husband after waking up from coma.

According to the latest issue of Life & Style magazine, as shared by Celebrity Dirty Laundry, Khloe Kardashian is reportedly caught between the rock and a hard place when James Harden forced his girlfriend to choose between him and Lamar Odom.

"James Harden has issued Khloe Kardashian an ultimatum and it may not turn out the way he wants. James reportedly told Khloe that he'll be busy playing basketball and she can come talk to him 'when she knows what she wants,'" the article claimed.

Previously, Khloe Kardashian was all praise for boyfriend James Harden for being very supportive in light of the Lamar Odom coma.

In an interview for Yahoo Style, she said that James Harden was the perfect boyfriend after finding out that the former Los Angeles Lakers champion was brought to the hospital last month.

"Right now, at this moment - I can't even tell you what's going to happen in 30 minutes, which I've learned recently - but James and I are great, and we're on a great page," she said. "As of this moment, he's been very supportive. He and I are doing just fine."

"I'm dating, obviously. James," the "KUWTK" star said. "But I haven't really spoken a lot about him. I've learned from experience you just never know what happens in life. I've chosen to keep things closer to my heart until I figure it out. I love hard, I love who I love, and I don't make any qualms about it."

Perhaps boyfriend James Harden was angry that Khloe Kardashian deferred the divorce proceedings after Lamar Odom was in coma just like what she told Ellen DeGeneres during a recent interview "I'm there helping him and I love him and I've always loved him and that will never change. And I just feel like it's a really insensitive thing to fast-forward a divorce."