This dream may symbolize a desire for closure or resolution in a past relationship. The random house could represent a sense of unfamiliarity or distance from the past, while the presence of the girl you upset in real life suggests unresolved feelings or guilt. Her parking her car at the house across the street could symbolize a physical and emotional separation between the two of you. Her friends staying in the car could represent a fear of judgment or outside influence in the relationship. When she walks up to you and expresses her past feelings, it could represent a longing for the positive aspects of the relationship and a desire to reconcile. The kiss at the end could symbolize a sense of closure or a final goodbye. Overall, this dream may be a reflection of your subconscious processing and coming to terms with the past relationship and its impact on you as a person.
