Dreaming about a friend's partner typically signifies emotional and interpersonal aspects in your waking life. This dream may reflect feelings of attraction, jealousy, or emotional conflict towards your friend's significant other. It suggests a potential exploration of your own desires or emotions related to relationships. Alternatively, dreaming about a friend's partner may symbolize concerns about loyalty, trust, or the boundaries within friendships. Pay attention to the specific emotions and contexts within the dream to gain deeper understanding and insight into the dynamics in your waking relationships.