Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that put bitter for sweet, and sweet for bitter!
-Isaiah 5:20, KJV
Some cheaters will accuse faithful spouses of all sorts of things.
They will take things that were done for their benefit and tell a story where they’re the victim. The faithful spouse is painted as the problem in all of their stories.
This dynamic of twisted accusations from cheaters is a reason to discount their marriage narrative. They are not reliable reporters.
I think this happens as a combination of both a move to discard via devaluing the faithful spouse as well as a move to make themselves look less bad. Sadly, some people fall for believing them.
But you, faithful spouse, don’t have to be one of those people!
You do not have to agree or believe their distorted reality. God has given you free will and the ability to choose what you believe.
Sure, the cheater, will likely attempt to undermine your reality and strenuously attempt to manipulate you into believing their version of things. They will likely be upset when you reject their marriage narrative for the fiction that it is.
That said, you can do this. Surround yourself with people and voices that support you.