[Grimnir]

Why?

Could it have anything to do with last Friday's eviction and the crowd cheering Aaron...Aaron...Aaron...Aaron

Notice how since Friday he has been more "normal" and not acting up as much

Maybe he thinks his little act is not working and so thinks "why should I bother staying here if I am not going to win"

I think Mark is fake and his stupid crazy speak is all an act for the cameras