The offended party wants that on reco4d and wants the cheating to factor into the distribution of assets and also custody. No fault screws over the cheated on spouse.
Even in “fault” divorces, the court will award alimony to a spouse who cheated, and even if one spouse maxed out secret credit cards hidden from the other, the court will split that debt 50/50.
What happened in the marriage doesn’t matter to the court. The court only looks at numbers. This is why so many people take the “no fault” route now. Speaking from experience here. Why bother proving fault when the outcome will be the same?