a wolf in sheep's clothing

In a state of shock.

I can't believe that she was so deceptive.

I can't believe how manipulative.

Went above and beyond to cover up her lies.

Trying to drag me under the bus with her, my good deeds don't go unrewarded. Bad deeds don't go unpunished either. I now know she got what she deserved.

A Wolf in Sheep's clothing, she was, she was.