Khloé Kardashian wants ''closure'' following her split from Lamar Odom.

The 'Keeping Up with the Kardashians' star filed for divorce from the former NBA star in December after months of rumours he was addicted to cocaine and cheated on her with multiple women, and is upset he hasn't signed their divorce papers yet.

A source told Us Weekly magazine: ''Without an official divorce, there's no closure for her.''

The 30-year-old beauty has been throwing herself into her work following her recent split from rapper French Montana after eight months of dating, but still worries about her estranged husband.

The family insider said: ''She still loves Lamar. It's a sad situation.

''Khloé worries he's doing drugs again. He's a mess.

''She gets very emotional when he's doing bad things. There's a part of her that can't let go and wishes he could change, but she realises he won't.''

The source added: ''They started having problems the second year of marriage and the third was just awful. She looks back at the marriage and the damage he caused.''

Even though she is still upset about their split, Khloé is eager to move on.

The source said: ''She's taking her time, but she wants to fall in love again.''