Are you talking about Ari (the green maid fox) or Maddie (The brown big tit kitsune with the apron)?
Ari just checks the door to see if your sanity is low and will leave if your sanity is high a little while after.
Maddie will either stay on a cam not letting you do anything there (except watching Nile) or stay in a door and keep it open so other girls can attack you. The way you deal with Maddie is
using the microwave in the left camera so she leaves either the camera or door