That’s odd because rabbits aren’t animals that have an inherent smell to them. Generally, most users on this forum, as it is an indoor rabbit forum, will promote that viewpoint, and I think there is a lot of research to back up why primarily indoor living helps rabbit longevity. If this is something you’re interested in for your rabbits, I recommend discussing with your roommate more about the details of their concerns and brainstorming ways to address it.
Rabbits are not smelly — typically, smell stems from a litter box that hasn’t been cleaned in a while. Urine may have a smell, especially for younger rabbits, but you can actually neutralize that smell by putting a tiny amount of apple cider vinegar in their water bowls.
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.