A "betrayed spouse" is a person who has been hurt or deceived by their partner's actions, often involving infidelity or breaking trust in some way. Full definition
If you spend any time in support groups for betrayed spouses, you soon find that the duration of the lie matters a lot to people. (scienceofrelationships.com)
Many betrayed spouses feel there is no way to rebuild trust and decide to end the relationship. (oureverydaylife.com)
Along these lines, we as betrayed spouses often ask questions of our unfaithful spouse that are almost impossible for the unfaithful spouse to answer accurately, because the question itself implies something that isn't true. (beyondaffairs.com)