The involvement of a married man in a romantic or sexual relationship with someone other than his spouse constitutes extramarital infidelity. This situation, often occurring in secrecy, involves a breach of marital vows and expectations of fidelity. Such relationships can range from brief encounters to long-term commitments.
Historically and culturally, male extramarital relationships have been viewed with varying degrees of acceptance and condemnation. Contemporary perspectives generally recognize the significant emotional distress and potential harm caused to all parties involved, including the spouse, the children (if any), and the individual involved in the extramarital relationship. The dissolution of trust and damage to family structures are frequent consequences.