Khloe Kardashian
 Khloe Kardashian and Tristan Thompson are hit by split reports REUTERS

Khloe Kardashian and Tristan Thompson are hit by reports that their relationship is on the rocks. The couple are reportedly fighting due to difference in opinion about their future. The NBA star wants to focus on his career, and the Keeping Up with the Kardashians star wants to settle down.

A source told Hollywood Life: "Khloe and Tristan rarely fight, but when they do it's pretty explosive. Their relationship is super passionate, so yeah, when they fight, they really fight"

"The main thing they fight about is the future. It drives Khloe crazy that Tristan won't commit, that's a real bug bear for her," the insider added.

"He's just really focused on his game right now, which she's totally behind. She really supports him, and knows he's got to go full out while he can. Tristan's career is everything to him, and that's got to be his priority as he only gets one shot at it," the source continued.

Meanwhile, NBA star James Harden had revealed why he split with Kardashian. The 27-year-old basketball player revealed he was unhappy with the attention surrounding the couple's relationship.

During an interview with Sports Illustrated, Harden explained why he ended his eight-month romance with the reality star. He said" "I didn't like all the attention. I feel like it was for no reason. I wasn't getting anything out of it except my name out there and my face out there, and I don't need that. It wasn't uncomfortable, but it wasn't me."

"I don't need pictures of myself when I'm driving my car. Who cares? What shoes am I wearing? Who cares? Where am I eating? Who cares? It was unnecessary stuff that I think trickled down to my teammates. I had to eliminate that," he added.