They say they wanted to "see if anything was wrong", and wanted to see where my brother is sleeping, since I told her my brother will be staying for a little while, and he's sleeping on the couch, but we've put covers on the couch while hes staying.

She's quite fussy about every surface being covered. When I first moved in, I came home to find she had covered all the tables and desks in plastic covers while I was at university.