I don't know... maybe because the same reason she brings two guys to that place to share with Nyusha... Maybe she have 'instructions' from Anna and Alex to keep this house alive
I saw Misty today trying to comfort Nyusha about something... If she felt threatened, that wouldn't happen
I didn't follow much this house on the last days, more on timeline... But from what i saw i rarely saw Nyusha talking with Rock/Ana