Half of the Angels stand firm to their duty, they are prepared to hold their position within the Wardstone as long as is necessary. Indeed, were it not for the other half of the Angels, they could perhaps hold the Wardstone indefinitely, their minds are both subtly and overtly different than mortal humans. They are able to track and hold to their commitments with a will almost no mortal could muster, and their emotions, intentions, overt desires, and subconscious reflexes align with a consistency unlike any Darth Occlus has encountered before, save perhaps for some of the most emotionally stable and ideologically committed Jedi.
The other half of the Angels are divided, but have a single unified demand, they must be let out, one way another. Some of them are filled with rage, longing to unleash their fury on the demons that have warped them so. Some are filled with despair, longing for an end one way or another. Others feel hatred, not just for the demons, but also for the mortals they pointlessly swore to protect nearly a century ago. Overall, their minds are actually almost identical in structure to those of the faithful Angels, save for a few key twists and warps within them.
Their struggle resonates beyond this Wardstone, given time to fester, it might effect other Wardstones, eventually corrupting the entire Wardstone line.