The 30-year-old filed for divorce from basketball player Lamar, 34, 10 months ago but not only is he refusing to sign the papers, Khloe allegedly has no idea where he is.
KIM AND KHLOE KARDASHIAN HAVEN'T SPOKEN FOR SIX WEEKS: 'THEY'RE PROBLEMS AREN'T FIXABLE'
A source told a US magazine: "Khloe can't even get in touch with him right now."
It is thought that her nieces and nephew, Mason and Penelope Disick and North West, are making Khloe long for a family of her own, which is why she is desperate to get the divorce finalised.
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"She wants to be in love again. She wants a family," a Kardashian insider told a US website.
"She doesn't want to be pigeonholed as the best aunt in the world. She loves her nieces and nephew but there's nothing like being a mother.
It was reported earlier this year that Khloe was struggling with her 35-year-old sister Kourtney's third pregnancy, and apparently it hasn't gotten any easier for her.
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The source continued: "She wants that. And it's like, here she goes again being the dutiful and proud aunt.
"She's happy for Kourtney and Kim but she's sad inside because everyone around her is thriving and living and she's stuck. Her life sucks right about now."