Ex-roommate dreams often symbolize unresolved emotions or unfinished business with a person who used to share living space with you. This dream may reflect mixed feelings about the past or the relationship you once had. It could indicate a desire to revisit certain aspects of the past or a need for closure. Alternatively, this dream could represent a lesson learned or personal growth since parting ways with your ex-roommate. Pay attention to the emotions and interactions within the dream for further insight into the significance of this symbol.