Dreaming about an ex-friend excluding you from a party can symbolize feelings of rejection or abandonment in your waking life. This dream may reflect unresolved feelings towards that friendship or general social anxieties. It could also indicate that you fear missing out on important experiences or connections.

Consider what this friendship and the party represent to you. Are there aspects of your past relationships that still affect you? Are you currently feeling isolated or disconnected from others? This dream may be prompting you to reflect on your current social circles and evaluate whether they support you.

To gain more clarity, think about how you felt during the dream and upon waking. Were you upset, indifferent, or relieved? Your emotions can provide further insights into how this situation affects you in your waking life.