I would question the legality of the person who released the footage to the Sun....this was on a government site and legally it shouldn't have happened.... Now could it have been Dom inspired???
As to Hancock, it's simple - he broke his own rules and advice and put himself in a totally untenable position. The situation may be deepened as there are accusations of further 'preferences' involving NHS contracts to Mrs C's lobbying company and one owned by her brother...
As to his relationship with Mrs C, the Telegraph implied that this had been going on since Uni days, so I don't think Mrs H was quite in the dark as many have made out - a bit of a Prince Charles/Camilla situation perhaps??