Although I have to agree with your assessment, part of me catches myself whenever I try to say that xW is evil, as I can't quite say it for some reason. Part of it must be because I had for so many years placed so much faith in her character, in her truthfulness and goodness. For so long I never consciously questioned her profession of Right versus Wrong -- I guess I even came to take it for granted that even where she happened to err, her intent was always to do good and that she would always try to make amends.
Obviously, I could not have been more wrong. In fact, I now see that she has always played these "roles" with people, to make herself into something she really knows he is not. She wants everyone to go along with the lie and pretend she is this sweet, altruistic person who puts everyone's needs ahead of her own, even to the point of denying herself. She will take measures to cultivate this facade before family, friends, colleagues, co-workers, teachers, neighbors, church members, etc. -- when she is nothing like.
And yet I still cannot bring myself to call her "evil". Lost, certainly. And her actions and behaviors and values, those are most definitely cursed by evil. I see her as making mistakes, yes, and practicing horrible judgement -- the point of willful stupidity.
In that sense I actually pity her. xW would like to pretend that she is more spiritually evolved and is thus on solid moral footing than she is, but her claim to faith has proven to be utterly hollow, sadly.
I will be watching S5 (and S9) -- observing each of my S's to see if C might help either or both