[boomoo]

The group of Lisa, Karly Dogface and Charlie voting this week for the same people has to mean they discussed it.

Why did they all drop their weekly vote for Freddie?

They were definitely going to vote for Marcus and they were saying that Freddie had changed a bit but it made no difference. Meaning he was on their hit list.
Then they all vote Noirin.
they had to have discussed that. They have all the numbers counted.
The difference this week was that Rodrigo changed his allegience having listened in to both sides of the conversations. The individuals as they called themselves for once all voted the same way.