I am pretty sure everybody reading TwistEd up until here knows that Bob isn t real. That he s the angel on gabriel s shoulder opposed to the lady on the other side. Subject to another comment at some point - i do not actually see the Lady as the devil or evil per se. Within this group she definitely brings out the worst in them. And is aware. Mostly.
The overkill of the past pages was not necessary for Gabriels mission. she lost it. Without being prompted directly by anybody. The lady did not plan for gabriel to go completely berserk, but she did plan for gabriel to plant lots of literal and figurative bombs in form of unsave weapons among them.
i actually did have a different version of tihs page - Gabriel being in shock, because Bob saw her in berserk mode doing gruesome stuff, and yeah, that s on the previous page. her good side barely can hold on, but she lifts him up again by constructing a justification.