Jealousy is an emotion characterized by fear, anger, insecurity and envy. It is a reaction to a perceived threat to a relationship or position. It can arise when a person believes their partner is giving attention or affection to someone else. Jealousy is often associated with possessiveness, suspicion, and mistrust.
Envy is a feeling of discontentment or resentment toward someone else due to their perceived advantages. It is a reaction to a perceived threat of losing something of value, such as status or recognition. Unlike jealousy, envy does not involve a fear of losing a relationship, but a desire to possess something that another person has.