Remember the reason why she has left the project once, her sickness? Ivo said to her that he normaly would not live in the same house with "a patient like her".
Christy told me that Ivo wants her to leave. He don't even look at her anymore, he simply ignores her the whole day. Same with Sonia, she hardly talk with her, only Petra is talking a little bit with her. I never thought that Ivo could be such an asshole. They ignoring her, not the other way around. This is why she is on that couch the whole day.
At the end, we both know which people the management will keep and who must leave...