People say Sid is back. But to be back you have to leave in the first place and Sid has never left, although his name was removed from the apt. After all that happens here the last weeks between Em and Sid, if Anna really wanted to get rid of Sid, she would not have let him in again. Simple.
Maybe the graphic in the bottom can explain why they still there. Although Em and Sid are doing nothing, they receive lots of views. Lisa had sexual activities twice. Yet, people watched her only for that moment then they left.
Timeline of EM and Sid between 18:00 yesterday to 16:00 today
Timeline of Lisa / Grant between 18:00 yesterday to 16:00 today