A cheater does not need to be a total monster in order to be bad for you.
I suspect most cheaters (if not all) have some “redeeming” qualities about themselves. If they didn’t, we probably never would have married them in the first place.They are mix–like all of us–of good and bad traits.
But unlike the rest of us, they are unique in their abusive relationship to us–namely, their engagement in the abuse of adultery and deceit.
We do not have to acknowledge all their good traits in order to understand this simple truth. They might have good traits…and likely do. But that does not change the fact of their abuse of us.
You are served a wonderful, multi course meal. But it results in violent illness because the entre contained spoiled chicken.
Nobody would say “You are so negative about dinner!” Except cheaters.