Infidelity (also referred to as cheating,adultery, or having an affair) is the subjective feeling that one's partner has violated a set of rules or relationship norms and this violation results in feelings of sexual jealousy and rivalry (Leeker & Carlozzi, 2012). Infidelity is a violation of a couple’s assumed or stated contract regarding emotional and/or sexual exclusivity (Weeks et al., 2003, p. ix).
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What constitutes an act of infidelity is dependent upon the exclusivity expectations within the relationship (Barta & Kiene, 2005). In marital relationships, exclusivity expectations are commonly assumed although they are not always met.
When they are not met, research has found that particular psychological damage including feelings of rage and betrayal, lowering of sexual and personal confidence, and damage to self-image can occur** (Leeker et al., 2012). Depending on the context, men and women can experience social consequences if their act of infidelity becomes public. The form and extent of these consequences are often dependent on the gender of the unfaithful person.
** Research done by shitty partners all over the world