The stigma isn't as strong here as it is in China, either. And he ended up paying for the divorce.
On the other hand, she's not as well off financially as she had been. It was emotionally difficult for her as well, but the root of that problem was deeper than the symptom.
Not sure that this service would work here.
Here's the last 15 years, but can't find the full data set right now: http://www.cdc.gov/nchs/nvss/marriage_divorce_tables.htm
Also false dichotomy. We do not know the percentage of successful marriages with undiscovered affairs.