“Vanya Orlov, if you do not stop listening to that shade and come with me this minute, I cannot be held responsible for what happens next,” is sharp, unforgiving, and —

accurate, even if she doesn't really know what it is she's threatening him with, specifically. She certainly can't be blamed for whatever the spirit does, and whatever is driving it, but thus far the strategy is just to bully him harder than the ghost and it's not not working.

She has to try something. He did get up. It's making a difference.