The hostility was so extreme it spilled into how the cast were instructed to behave on social media after filming wrapped. 'They were basically told, 'Don't like posts, don't comment, don't look united - because you'll look ridiculous once this airs.' 'They literally got what they needed from the cast from dinner parties in a record two hours,' the spy added. You don't know who's going to explode, who's going to walk out, or who refuses to sit next to who.' Whether Channel Nine can successfully corral the cast into the same room again remains to be seen.