Is it possible that GBC told his Gorgeous Girl mistress - during the 'lay low' conversation - that he would say all kinds of awful stuff about her, but not to worry as he needed to do it so that he could be free to come to her?
Maybe that's why she said so little? Maybe it is part of the plot?
I would be interested to know if they have had any contact since he has been in jail, any visits, phone calls etc. Then again he could have made contact with her via his family.