The 28-year-old has moved in with sister Khloé, 30, while he works through his social anxiety and depression.
But Kim, 34, wasn't too pleased when Khloé revealed Rob had been partying at her house with 'major wh*res'.
Khloé told her sister: "Someone threw up in my house."
An unimpressed Kim replied: "He won't leave the house or see us, hardly, but he'll have parties and see other people?" She then described her brother's life as 'bizarre'.
Recently Kim has been pressuring the family to toughen up where Rob is concerned, insisting it's the only way he'll work through his issues.
During an earlier episode of Keeping Up With the Kardashians, Kris Jenner, 59, tried to stage an intervention for her son.
However Rob refused to leave the room he's using at Khloé's house, causing her to break down and beg him to 'accept the f**king help'.
Kim recently hit out at rumours that being part of the 'Kardashian circus' is to blame for Rob's problems – insisting that he has unresolved issues in his life.