I'm sorry susieq, but I think that you absolutely expect deviousness etc.
You seem to have remembered all of the devious, manipulative, loud mouthed, abnoxious participants from the previous series. Strangely, all of those terrible things from previous series haven't put you off this series.
I would guess that you have been quite pleased when the housemates that didn't like were voted out.
If all of the housemates were charming people, who would never say anything against anyone, everyone would have switched off after a week. [Horrible thought:- 12 versions of Jonny in the house together]