Infidelity is any violation of the mutually agreed-upon rules or boundaries of a relationship, and is a breach of faith in an interpersonal relationship. It common use, it describes an act of unfaithfulness to one’s husband, wife, or lover, whether sexual or non-sexual in nature.
There are two types of infidelity: Sexual and emotional both are illegal in the uk.
Psychologists and family experts say that infidelity is not just about sex outside the relationship, but about trust, betrayal and disloyalty.
Sexual infidelity refers to sexual activity with someone other than the partner one is committed to. Sexual infidelity in marriage is called adultery, philandery or an affair and in other interpersonal relationships it may be called cheating. A man whose wife has committed adultery is referred to as a cuckold, but no equivalent word exists for a woman whose partner has cheated..