recently I had a dream where myself and 10 other random people I know were leaving our homes to go travel (I dont know where), and that my dog was going to stay at home with my parents but when we were about to leave to go to the airport my dog was running away but I was stuck in the taxi and I couldnt do anything about it.
Dogs, "Man's Best Friend," usually symbolise friends in our real life. It may symbolise that a friend will see you as deserting him or her and will reciprocate and try to leave you first. I guess the moral of the story is to not ignore your friends, they may be having problems and you may give an air of not wanting to be bothered or trivalising their dilemma.