The rejection of betrayal, as well as other unambiguous actions, is based on internal solidarity with moral principles accepted in society and “packed” by psychologists in the theory of moral foundations MFT - moral foundations theory. Morality or morality is one of the basic aspects of humanity, which helps us to coexist comfortably, agreeing once and for all what is good and what is bad.
According to American psychology professor Elliot Turiel, morality is “prescriptive judgments about justice, rights, and welfare concerning how people should treat each other.” With standard morals in mind, we know that it is good to minimize harm and maximize caring, promote justice and freedom, respect those in authority and the elderly, avoid things that are humiliating or disgusting, and, of course, be faithful to your social group and partner.
In accordance with moral principles, we are sure that betrayal in a relationship is a bad deed that requires censure. It sounds dry and official if someone's behavior is evaluated from the outside. An icy waterfall of destructive disappointment from the series “knife in the back” or “ground from under the feet” falls on the one who suddenly found out that he was cheated on, which nullifies the meaning of the joint past, present and cuts off oxygen to the future. Why so powerful? Because emotions add fire.

Emotions are an important adjunct to the disappointment and moral condemnation that accompanies a moral assessment of a situation. Cognitive development experts have come to the conclusion that the reaction to betrayal directly depends on the strength of feelings, the nature of the personality and the surrounding circumstances. And, of course, jealousy is the strongest emotion that inflames this reaction.
Does your moral compass tell you that admitting to cheating is the only right step? Psychologists confirm that this is the right guideline in healing relationships. Stories from the series “the devil beguiled, I'm sorry, let's start over” have a chance for a successful continuation. Telling the truth is good, as is resisting the urge to have love affairs if you're in a stable monogamous relationship.

In a recent large study at Berkeley University, where groups of partners were interviewed in two stages (reactions to infidelity followed by confession and a tendency to withdraw), scientists concluded that honesty and sincerity change the perception of infidelity, softening the pain of betrayal and resentment. . Respondents faced with infidelity unequivocally recognized secret adultery as a greater evil than those that were revealed on the personal initiative of a traitor.