All what he does this week seems like so..
1. Getting rid of Harry which improve Nick chances of going to the final
2. Trying to break up Jack-Danny-Chloe which is possibly the biggest threat for Joel & Nick to make the final. like what he said in the bunker, Nick & Joel gonna be eliminated in top 5 -> top 3

3. Hiding the fact that the main group which is supposed to be Jack-Danny-Chloe-Nick-Joel. He said to Jade-Sam-Simon that the main group was Jack-Danny-Chloe-Christian and tell them to warry about them.
idk