I know of a man, a traditional Catholic, who is legally divorced. He has custody of his four children. Their mother decided about a year after the birth of the youngest that she wanted a new life, so she just walked out. She has since found herself another man who is on the list of sex predators, so she sees the children once per month for three hours in a neutral location under supervision. To avoid constant legal and financial badgering, he agreed to the divorce. He has no intent to remarry unless she dies. Also, to avoid legal and financial wrangling, he supports the children on his own.