Thank you for sharing your dream. Dreams can often reflect our subconscious thoughts, feelings, and experiences. Here’s an interpretation of the various elements in your dream:

1. Meeting Your Mom's Friends: This could symbolize the influence of family and social connections in your life. Meeting new people in a familiar setting may indicate a desire for social interaction or support from those close to you.
2. Searching for the Missing Girl: The act of searching may represent a quest for understanding or resolution in your life. The girl’s sadness might reflect feelings or issues you’ve noticed in others or within yourself that need addressing.
3. Encountering Classmates and Friends: This suggests a longing for connection with your past or unresolved relationships. It might indicate nostalgia or reflect on how you value friendships in your life.
4. Feeling Followed: This could symbolize anxiety or fear about a situation in your waking life. The feeling of being pursued might indicate that there are challenges or pressures you are trying to escape.
5. The Proposal and Wedding: The proposal could represent unexpected feelings or situations regarding relationships. Your reaction—indicating you have a boyfriend—shows a commitment to your current relationship but also hints at inner conflict regarding your feelings towards others.
6. Concerns About Dominance in Relationships: This part of the dream signifies your awareness of relationship dynamics. You might be contemplating the balance of power in your relationships and how it can affect future interactions.

Overall, this dream appears to reflect your social connections, feelings of anxiety, and contemplation of relationships and commitment. It may be worthwhile to consider how these themes manifest in your waking life. Are there unresolved feelings or relationships that need your attention? This dream might be encouraging you to explore those aspects further.