Dreams involving themes of kidnapping, abuse, and violence can be quite distressing. They often reflect deep-seated fears or anxieties in your waking life. Here are some potential interpretations of your dream:

1. Feelings of Vulnerability: Being kidnapped in a dream can symbolize a feeling of losing control over a situation in your life. It may suggest that you feel trapped or powerless in a relationship or circumstance, even if it seems glamorous on the surface, like dating someone famous.
2. Conflict in Relationships: The duality of being in a relationship with someone important and experiencing abuse could indicate inner conflict. You might be grappling with mixed feelings about a relationship that has both appealing and harmful aspects.
3. Fear of Exposure: The act of revealing your scar to the world may symbolize a desire to be seen authentically, despite past trauma. It could represent a struggle with self-acceptance or the fear of judgment from others.
4. Need for Support: The two people who opened the door and left confused may represent a need for support or help that feels unavailable. Their reaction could echo feelings of isolation or abandonment in a time of need.
5. Transformation and Healing: The scar can also symbolize healing from past wounds. By exposing it, you might be indicating a readiness to confront and share your experiences, leading to personal growth.

Consider reflecting on your current life circumstances, relationships, and feelings. Are there aspects of your life where you feel compromised or conflicted? This dream may be urging you to address those issues openly and seek support if needed.