The former couple were in court for a divorce hearing on Wednesday (August 15), where Humphries's attorney pursued accusations that Kardashian orchestrated a fraud when marrying the NBA star.
Legal wrangling on both sides is expected to ensure that a divorce settlement will not be reached this year.
Kardashian apparently vented frustrations to friends after Wednesday's hearing and said Humphries is "a cancer" in her life, according to TMZ.
A friend of the Keeping Up with the Kardashians star has also claimed that Kardashian was hoping for a quick resolution not so she could marry boyfriend West, but because she wants Humphries out of her life.
Kardashian reportedly told the insider that she is "emotionally exhausted" by the divorce case and called Humphries a "manipulative, vindictive, petty, fame-hungry jerk" for accusing her of fraud.
Humphries and Kardashian wed in August 2011, but the Kourtney and Kim Take New York star filed for divorce just 72 days later.