'Kim still denies they are getting a divorce, but things are definitely not great between her and Kanye,' the insider said.
'Kanye is supposed to rest and focus on his mental health. Instead, he has had a very busy week and is done resting,' the source continued. 'Kim acts annoyed. She also seems miserable and is spending a lot of time with her family.'
The rapper was taken to hospital on November 21 after suffering a 'psychotic break'.
Kanye West looks healthy and relaxed as he is seen SoHo with bleached hair in New York. Photo / Jackson Lee / Splash News Australia
He had been taking part in a gym session at the West Hollywood home of trainer Harley Pasternak when he became agitated and allegedly began screaming that people were trying to kill him.
Dr Michael Farzam was called to the scene and West was placed on a 5150 hold, which allows a physician to forcibly admit a patient to hospital, before being taken to the UCLA Medical Center.
West is said to have been handcuffed to a gurney during the journey, which came two days after he launched a bizarre rant on stage in Sacramento, California, and 24 hours after he announced that he was canceling all remaining dates on his Life of Pablo tour.
He and Kardashian are thought to have been arguing a lot in the run-up to his meltdown, while the attack on her in Paris on October 2 is also believed to have contributed.