This dream may symbolize your desire to reconnect with someone from your past, specifically your old soulmate. The car represents your journey in life and the fact that you are both in it together suggests a desire for partnership and companionship. The gun tapping on the window may represent a sense of danger or threat in your waking life, possibly related to your past relationship with your soulmate. Walking around the city of San Diego may symbolize exploring new opportunities or revisiting old memories. Your ex joining you and asking questions about yourself may represent a desire for closure or understanding in your past relationship. The feeling of claustrophobia and the sound of the gun taps may indicate fear or anxiety about facing your past and the potential consequences of reconnecting with your old soulmate. This dream may be a reflection of your subconscious processing your feelings and desires regarding this past relationship and the potential for reconciliation.