Khloé Kardashian says James Harden has been "really understanding" about her support for Lamar Odom.

Khloé Kardashian

Khloé Kardashian

The 31-year-old star has been helping her estranged husband since he was hospitalised last month after collapsing in a brothel in Crystal, Nevada, and Khloé has praised the way in which her current boyfriend has dealt with the situation.

She said: "James has been great he's been really supportive, really understanding. But I've been honest."

Khloé also refuted suggestions that she and her husband will eventually reunite.

She told E! News: "I understand why it's confusing to other people because it's confusing to me, too, but I understand why the media wanted to make it this great love story like that would be wonderful but there are so many more layers that people are forgetting."

The reality TV star, who married Lamar in 2009, also revealed she's trying to be as open and honest with her current boyfriend as she possibly can be.

Khloé - who is currently promoting her new tell-all book, 'Strong Looks Better Naked' - explained: "I think it's honest communication just really being honest and hearing [Harden's] feelings as well - what he's comfortable with and what he's not, and I have to respect that."