To dream that you are jealous of another’s fortune signifies your own misfortune and difficulties in climbing the social ladder. To dream that you are jealous of another person signifies that such feelings may be carried over from your waking life; something about this person makes you feel inadequate. Try to identify what exactly you are jealous of and ask yourself whether this is a quality you should nurture within yourself.
If you dream that someone is jealous of you, your dreaming mind may be telling you that this person harbors hostile feelings against you.
[1]