Dreams involving intimate interactions can often reflect your feelings about relationships, intimacy, or vulnerability. In your dream, the act of the girl grabbing you could symbolize a desire for connection or an exploration of your feelings towards her. It may also represent feelings of vulnerability, as being touched in such a personal way can evoke a sense of exposure or lack of control.
The concert setting suggests a social atmosphere, which might indicate that you're navigating your feelings in a group dynamic or looking for excitement in your life. Consider how you feel about this girl in your waking life. Are you interested in her, or do you have unresolved feelings? The dream may be encouraging you to explore those emotions or to think about your comfort level in relationships.
Reflect on your current social interactions and whether you feel secure or exposed in them. This could provide insights into your emotional state and what you might want to address in your waking life.