Dreaming about an ex-girlfriend can symbolize unresolved emotions and unfinished business in regards to past relationships. It may reflect aspects of the dreamer's own desires, regrets, or fears related to the previous romantic connection. This dream can serve as a reminder to examine and process the past experiences, allowing for growth and healing in future relationships. Additionally, it might indicate a need for closure or a longing for a lost connection. The interpretation of this dream can vary depending on the specific emotions and actions experienced within the dream, as well as the personal history between the dreamer and the ex-girlfriend.