Your dream is rich with symbolism and reflects various emotions and experiences related to your past, particularly concerning your ex and feelings of safety and vulnerability. Here's an interpretation of the key elements:

1. Setting of Childhood Home: Dreaming about a childhood home often signifies a return to your roots or unresolved issues from your past. It may indicate a desire for safety and comfort, or perhaps a reflection on your past relationships and how they have shaped you.
2. Ex and the Intruders: Your ex being attacked can symbolize unresolved feelings about the relationship, possibly fear of losing him or feelings of helplessness in situations involving him. The intruders may represent external threats or fears you feel in your current life—perhaps worries about safety or trust in relationships.
3. The Woman with the Torn Purse: This woman could symbolize a part of yourself or others in your life who seem to be struggling or carrying past wounds. The torn purse may indicate fragility in relationships or connections, suggesting that there may be unresolved emotional baggage associated with your ex.
4. Fear and Paranoia: Your fear of the police and the paranoia about threats to your children reveal a deep concern for your family's safety. This could relate to past experiences or anxieties about your current situation, reflecting a protective instinct.
5. Delivery Drivers and Attraction: The delivery driver you felt attracted to may represent new opportunities or potential relationships in your life. It's possible that he embodies qualities you seek in a partner—safety and comfort—but your guilt about your ex complicates these feelings.
6. Stairs in the Home: The addition of stairs in a familiar setting can symbolize personal growth or changes in your life. It may reflect your evolving feelings and the complexities of moving forward from past relationships.
7. The Club and the Glamorous Woman: The club may represent socialization and new beginnings, while the glamorous woman on stage symbolizes the past that continues to haunt you. Her transformation may suggest that past issues can change but still hold a significant emotional charge.
8. Decision to Move: Your conversation with your mother about moving indicates a desire for a fresh start or to escape uncomfortable situations. This reflects a need for safety and a new environment to foster healing and growth.

Overall, this dream seems to be processing complex emotions surrounding your ex, feelings of safety, and the emergence of new potential in your life. It may be helpful to reflect on your current relationships, your sense of security, and how you can address lingering fears from the past. Consider whether there are unresolved issues that you need to confront or if there are steps you can take to move forward positively.