Possibly the dream is showing you your tendency to forget the nuances of the circumstances of life. It can be an invitation to look any conflicting relationship that worries you today more objectively, either in the workplace or sentimental field. Avoid ambiguous situations.
Dream dictionary: relationship wih 5 angel dream meanings
Dreaming that you are going abroad, represents you as unstable and confused person. Being abroad in the dream also indicates that there are changes in your life, that have to be done. Maybe changing the environment, in which you are at the moment, might be useful. However, this means that there are some things in your life that has to become opposite then they are now. You might need to change your job, go for the holidays, broke up or get divorced to someone. This is a sign of you growing as a person spiritually. Abroad dream can also represent that you are going to run away from something, maybe relationship or situation.
To see smog in your dream, indicates your negative emotions. You may be feeling upset and fearful of a situation or relationship. Alternatively, it suggests that you have not clearly understood a situation to make an informed decision.