Dreaming about encountering an ex, especially in a public setting like a restaurant, can often signify unresolved feelings or lingering thoughts about that relationship. Running away in the dream may indicate feelings of anxiety, discomfort, or a desire to avoid confrontation.

The presence of your ex-husband's new girlfriend could symbolize feelings of jealousy or insecurity, or it might reflect your thoughts on moving on and how you perceive your own healing process. His upset reaction to seeing you might represent your worries about how past relationships can affect your current emotional state or how others perceive you.

This dream could be urging you to confront any unresolved emotions related to your past relationship. It may also suggest a need for closure or acceptance. Consider reflecting on what this encounter means to you and how it relates to your current life and relationships. Are there aspects of your past that you feel you need to address?