infidelityAct of being unfaithful
Definitions:
The action or state of being unfaithful to a spouse or other sexual partner.
extramaritalOutside of marriage
Definitions:
Relating to or involving sexual activity with someone other than one's spouse.
transgressionAct of violating a law or rule
Definitions:
An act that goes against a law, rule, or code of conduct; an offense.
monogamyPractice of having only one partner
Definitions:
The practice or state of being married to one person at a time or having one sexual partner.
betrayalAct of deceiving someone who trusts you
Definitions:
The action of betraying one's country, a group, or a person; treachery.