I had this dream last week...
Background: Last week, something happened for me to think about a friend I used to have. I don't talk to her anymore, but we were really really close from kindergarten up until I was about 18 (I think it was my first or second year of college). Something happened for us to drift apart and I stopped talking to her, and it was pretty sad because we've known each other for so long. My mother also knew her mother; we used to go out and eat, etc.
In the dream, I see my friend with her mother. I am at a party, talking, drinking, having fun. I am sitting down and I'm telling my friend something and we start laughing hysterically. I stop suddenly, though, because I see my friend across the room, along with her mother, and they are just staring at me. I put my drink down, and when I turn again, they are gone. Then, I get an uneasy feeling in my stomache.