It really is that he is "ALLOWING" her to play him..
She can only do what he allows. Many people on this site like to keep being a victim and some trying to help keep allowing them to be victims because they don't want to "hurt" their feelings. So all the BS has to do is to keep making sure the people trying to help them are not allowed to hurt them. This keeps others from telling them something they don't want to hear. The ones helping fall for it and many times even keep enabling the betrayed to stay a victim.