Sadly it happens in all kinds of circumstances. I had two women friends in the 90's one was a minister's wife and she slept (in the family home) with the young man they moved in to help with their church until he could find his own place. Divorce after months of cheating. This was a young family with several young children
The other woman lived next door for years to a family and watched their son grow up then one day when he was 17 and she in her mid 30's they began their affair. I could not stomach it and said goodbye to her and soon her family was destroyed as well.
Not just celebrities or the hired help involved.
"Live frugally, but love extravagantly."