LITERATURE REVIEW Since the formation of communication as a discipline, researchers have been interested in examining all aspects of interpersonal relationships, from casual acquaintances to romantic partners (Rau, 2008 ). Despite the large body of research already carried out, it has recently been discovered that there is an increase in divorce rates in Western countries, due to jealousy and its impact on happiness in intimate relationships (Statistics, 1996). Through my research, it has been confirmed that there is a strong connection between the two variables, developed further in the following paragraphs. Although addiction is essential to the survival of any relationship, it can also cause anxiety; sadness, jealousy and insecurity when a threat to the relationship (real or perceived) arises (CITE 1). Among human emotions, jealousy is one of the most powerful and painful. It is deadly and statistical studies rank jealousy as the third most common motive for murder (ISCED 1). Recently, evolutionary psychologists have proposed that jealousy is a specific innate module, a circuit in the brain that reflects the different selective pressures that acted on ancestral men and women (CITE2). According to this theory, men typically become jealous when they suspect sexual competition, a response to the threat of cuckoldry. On the other hand, jealousy in women is triggered by a suspicion of emotional betrayal (CITE2). As romantic relationships develop over time, the relationship naturally deepens and becomes more serious. Inevitably, this leads individuals to become more and more dependent on their partner. This dependence is necessary for the survival of romantic relationships and, this, can be seen as a challenge...... middle of paper ...... dependence perceived by the individual which, according to him, can be unhealthy for relationship and usually leads to insecurity and immense levels of jealousy. After reading all these articles and researches done by eminent psychologists and researchers which proved to be very useful, I come to the conclusion that there is some sort of connection between happiness and jealousy. I realized that jealousy has a terrible impact on a person's happiness and emotions. I also retrieved compelling research to conclude that social networking sites (SNS) are a primary causal factor in sparking jealousy in both partners, which can lead to relationship destruction between partners depending on levels of insecurity on which I think I based my research. a central balance that can help me in my investigation into the impact of jealousy and how it affects happiness in a relationship.