I hate to say this but I think I might have the same fear. I hate going places where beautiful girls are with my boyfriend because it makes me feel like sinking into the floor so that nobody can see me. I don't know if I am really ugly but I feel like I don't exist and I start to act weird and can't communicate and I end up frustrated. I don't know why this happens but I just wanted to let you know that I do this to myself, noone else is doing anything to me.