Dreams about someone showing off their new home while ignoring you can reflect feelings of exclusion or insecurity in your waking life. Homes often symbolize stability, comfort, and personal identity. In this context, it may suggest that you feel overlooked or undervalued in a relationship or situation, particularly if this person is someone important to you.

Consider the following interpretations:

1. Feelings of Inadequacy: You may be feeling inadequate or comparing yourself to others. This dream could be highlighting your desire for recognition or acknowledgment.
2. Desire for Connection: The act of being ignored might indicate a longing for deeper connection or communication with this person or others in your life.
3. Fear of Change: If this person is moving forward in their life or succeeding while you feel left behind, it may express anxiety about changes in relationships or your own life path.

To gain further insights, reflect on your current feelings toward this person and your relationship with them. Are there unresolved issues or feelings of jealousy? Engaging in open conversations with the person involved may help address these emotions in your waking life.