The father had almost no income, but had inherited millions from his "distinguished" and wealthy Welsh family, while the mother worked hard at her job as a journalist.
After three years, the husband and wife set up a consultancy together and had planned to move to France - but the marriage turned sour in September 2012.
During lengthy legal wrangles over the matrimonial money, the wife started a relationship with a former army officer, who was in the Signal Regiment.
She neglected to tell the court about her new man, but the court papers say the liaison was “revealed by virtue of investigations” made by the husband’s legal team.
You and your partner must attend an appointment at a register office and show the required documents.
The notice is a legal document and one must be signed by each person giving notice.
The main difference is that you no longer have any legal duty to live together but you cannot remarry.
This should be carefully considered with your solicitor. Grounds for divorce You have to show the court that the marriage has irretrievably broken down.
There are hundreds of married people, of both sexes, advertising for casual sex with strangers.
In England and Wales, a divorce can only be obtained when a marriage has irretrievably broken down and it can be proved by at least one of five specific facts, set out in the divorce petition.
Adultery is one of the five facts that can be used to prove a marriage has broken down irretrievably, and it seems to be pretty common.
The relationship dealt a hammer blow to her case when Mr Justice Mostyn noted: "She likes him and his children very much, she hopes it continues, they have a lot in common and are happy together." He reasoned: "She says she is not going to live with him, although it is perfectly clear that the relationship is strong.
"Relationships like this always are a significant fly in the ointment in the assessment of need.