It's wrong to hog an entire area for yourself.
Trevor moves into a two bedroom apartment with his friend Lance.
Trevor wants to divide up the apartment.
Trevor tells Lance they'll each get one bedroom, and they can share the living room.
Trevor tells Lance that one bedroom is for Lance and the bedroom and living room are for Trevor.
Lance will think Trevor is fair and enjoy living with him.
Lance will be annoyed with Trevor and not want to live with him.