Said spirit thing doesn't actually have any sort of form or consciousness at all, it's more of a... force?? ;~; BUT!! Let's say that she can still see it, as a sort of gross black miasma thing that hangs around his head, and she's totally free to interpret it however she likes AND ACT ACCORDINGLY B)

And yeah, attempts at getting rid of it would fail X( I'M SORRY CHLOE ...