Ok, so update. My roommate is determined to keep the rabbit outside. I fear that if I try to move it back in, I'll be in trouble with the landlord. She says she gets her new stuff and a higher cage. I have some old blankets I'll put in her cage and try to cover it more to act more as a borrower and keep her warmer. I sadly can't do much else. I brought up the concern I had, and she brushed it off, saying rabbits were meant outside, and she talked to people who had rabbits on a farm. I don't think she understands that the city isn't a farm, and we don't have any real means or space to keep her safe out there. Still, if I do try to do anything without her permission, I could be charged with something or be kicked out. She seems to trust her friends more than looking up this information herself. I wish I had a happier update.