IMO Mark is not as clever as he thinks he is and he acted before he put his brain into gear. He slipped up and broke his own cardinal rule i.e. look at the bigger picture and, first and foremost, please the public. His desperation to keep things sweet with Ash and Helen has made him forget all that - he's cosied up to them while throwing Ashleigh and Chris under that bloody bus. Might allow for his continued popularity in the house with his bestest buddies, but will likely, and obviously has (on here at least), alienated much of the viewing audience. For my part It isn't really about whether or not he actually fought Ash's corner and then rolled around on the control room floor for an hour in angsty despair at having to nominate him; it's about the fact that he immediately ran and told tales to protect himself without a thought for the others and didn't stay loyal to the alliance and enable them to present a united front. Short-sighted. That veneer of fair-to-all-funtime-Charlie is just that, a veneer, and a very thin veneer it is too. I think I already knew that but I'm surprised the mask slipped quite so quickly and unthinkingly.