cuckoldom
/ˈkʌkˌhɔːldəm/Definitions
1. noun
The state of being a cuckold; a situation in which one’s partner is unfaithful.
“His long-term cuckoldom had taken a toll on his self-esteem.”
2. noun
A person who is or has been a cuckold.
“The man felt ashamed of his cuckoldom and ended the relationship.”