Sounds like someone must have shouted your sister is ill over the fence to her, which is cunning code for there is bad press about you! should maybe have been code for wash under your armpits! ;o)
It sounds like a cover up. Dawn wanted to leave last night but was told by BB that she couldn't. Then she leaves this morning (no hint that BB was involved) Now they're saying they got rid of her. Possibly BB doing some damage controle over Shahbaz walking and now Dawn. Oh and The Mental Health Foundation slamming BB by saying "We are concerned that vulnerable people apparently continue to be allowed into such a high-pressured environment.�