Khloe Kardashian has reportedly put her relationship with James Harden ''on hold'' for the time being.

The 'Keeping Up With the Kardashians' star, 31, has kept a vigil by her estranged husband Lamar Odom's hospital bedside ever since he collapsed at a brothel last week, and she's now decided to call time on her romance with the basketball player while she focuses on her former flame.

A source told gossip website TMZ.com: ''Khloe is putting her relationship with the NBA star on ice ... it doesn't take a rocket scientist to see she still has deep feelings for Lamar.''

James - who started dating the reality TV star in June - understands the blonde beauty needs space and time with Lamar, 35, so has vowed to support her from afar.

A source said recently: ''He is so nice and being as supportive as humanly possible given the situation.

'' Lamar essentially has zero consistent family other than the Kardashians, and James understands that. The last thing he would want to do would be to add more stress to her plate.''

Meanwhile, the sportsman is recovering well following his collapse, which was spurred on following a drink and drugs binge, in Las Vegas and is now breathing on his own.

Khloe, who filed for divorce from Lamar last December following four years of marriage, is currently making all of his medical decisions and has decided to move him to Los Angeles, where she resides, so she can support him.

A source said: ''Khloe and her mother Kris [Jenner] decided to move Lamar to a rehab centre in LA so they can all be closer to him. He's still getting better little by little.''