Eric doesn't really know how to do anything that's not horrifying. It is his way of being 'sweet' though.
"Marnie's. You, Tara and several other women were being held inside by the crazy bitch of a witch."
Now he's worried this place has affected her memory in some way and if that's the truth, there won't be anything that can stop him from tearing this place apart. "You don't remember?"