Infidelity refers to the act of being unfaithful in a romantic relationship. This often involves one partner engaging in a romantic or sexual relationship with someone outside of their committed partnership. Infidelity can lead to feelings of betrayal, hurt, and distrust, significantly impacting the relationship between the partners involved. The reasons for infidelity can vary widely, including emotional dissatisfaction, lack of communication, or the desire for excitement. It can occur in any type of relationship, whether it's a marriage or a dating scenario. Addressing infidelity often requires open dialogue and, in some cases, professional help to rebuild trust.