Dreams involving past trauma and feelings of vulnerability can often reflect unresolved emotions or anxieties. In your dream, the setting of an international hotel might symbolize a place of both opportunity and anxiety, particularly in the context of a work event. The presence of childhood schoolmates suggests a connection to your past and possibly unresolved issues related to those relationships.
The girl who had previously assaulted you represents a source of fear and discomfort. Your plea to be moved to a different room indicates a desire for safety and a need to escape from a situation that feels threatening. Locking yourself in a room could symbolize your attempt to protect yourself from emotional or physical harm, while the act of someone trying to shoot you may represent feelings of betrayal or the fear of being attacked, either emotionally or physically.
The urgency of missing your flight suggests feelings of being rushed or pressured, perhaps indicating that you feel unprepared for certain aspects of your life or that past experiences are catching up with you. The Apple Watch alert could symbolize your awareness of time running out or the need to make quick decisions in stressful situations.
Overall, this dream may indicate that you are grappling with past traumas and feelings of vulnerability in your current life. It might be beneficial to reflect on these feelings and consider speaking to someone, like a trusted friend or a professional, about your experiences to help process them.