Susan's been quite anxious about the full moon and it's been expressed in a less than patient demeanor and a shrinking back from her friends, from the network, from anything. And as the wolf gets out, perhaps on its way it is attempting to make its way to her cell. The wolf wants to finish what it started.
She will be drawn to the front of the cell and maybe that's where Eddie is under the werewolf? Feel free to get her with a couple spells or something crazy like that. Otherwise, she will be equally horrified and sad about everything. (But also secretly glad she isn't a werewolf!)