Phenomenon, your dream is rich with symbolism and seems to reflect various aspects of your subconscious processing of past relationships and personal growth. The house you found yourself in with your ex and former friend symbolizes a space where past memories and unresolved feelings reside. Seeing your ex and the friend who was involved with him suggests lingering feelings of betrayal or unresolved anger. The attire and exaggerated appearance of your former friend might indicate how your mind perceives him now—out of place and distorted, perhaps reflecting your feelings of mistrust or disillusionment.
Your ex not paying attention to this friend, being on the other side, might symbolize the emotional distance or separation you feel from that part of your past. The scene shifting between your brother's house and the friend's house may suggest a blend of familial and friendship dynamics influencing your emotions.
When you moved outside to the parking lot filled with old, damaged cars, it could be a reflection of how you view past relationships or experiences—worn out and no longer functional. The black container of oil and your intention to put it in your ex's car's gas tank symbolizes a desire for retribution or to make your ex face consequences for his actions. However, the act of spilling oil on yourself and feeling bad for him might indicate an internal conflict where you grapple with anger yet feel empathy.
The recurring mall scenes, where you find yourself questioning your ex about past issues, signify a need for closure or understanding. Malls are places of choice and variety, perhaps indicating your search for answers or resolution in a vast space of possibilities. This repetition suggests that these unresolved questions weigh heavily on you and continue to resurface in your subconscious.
Finally, the scene in the garage at your brother's house, witnessing your ex and former friend in an uncomfortable sleeping arrangement, adds another layer. The pill-taking and strange bed setting might represent how you view their current situations—awkward and unhealthy. The act of observing without interaction and turning to the washing machine could symbolize your desire to clean or process these complicated emotions without direct confrontation.
In summary, your dream intertwines elements of past relationships, unresolved feelings, and a quest for understanding and closure. These recurring themes suggest that your subconscious is working through these issues, perhaps indicating areas in your waking life that might benefit from further reflection and understanding.