How would you feel about having a weird quiet housemate who always has their door closed and never leaves their room?
Except to eat, use the bathroom, do laundry or go to college. Doesn't watch tv, rarely goes out with friends or has friends visit (maybe once or twice a month if at all). Doesn't really talk to anyone except for an occasional "Thanks for the food". If there are guests that she doesn't know, then don't count on seeing her at all for the entire duration of the visit. If there's no college, then she stays up till well past 3am and only wakes up after noon. Occasionally does dishes when there's nobody else home. Is this weird?