Is it wrong or controlling to have a zero tolerance policy toward cheating in a marriage or relationship?

Recently I was having a conversation on here of all places about loyalty and fidelity in a marriage. Said person told me i was sexist, controlling, abusive, and misogynistic for telling my wife that if she ever cheated on me, it would be instant divorce.. Additionally it would be instant divorce if she asked for any form of hall pass or open marriage/relationship.
Is it wrong or controlling to have a zero tolerance policy toward cheating in a marriage or relationship?
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