Why should we not be able to recapture the heady thrills of youth, while protecting a secure home life?
The time has come, alongside the technology, to redraw the rules of marriage for the 21st century.
So why have modern British couples resisted for so long and are they finally ready for this new 21st‑century approach to marriage? Even as religion has lost its influence, Britain has remained coy about openly embracing sex for pleasure, stubbornly conflating sexuality with procreation.
There is also the army of therapists and counsellors who continue to pedal their own secret agenda of enforced exclusive monogamy.
It’s time to start honing our seduction skills and join the playground.
Yet it is the most puritanical nations, including Britain and America, that have traditionally resisted the notion of adultery most rigorously.
Indeed, the conventionality of affairs is displayed in the concept of le cinq à sept, the magical space between 5pm and 7pm when men see their mistresses.
In Japan a tradition of geishas has evolved into a modern society where sex is seen as a pleasure to be enjoyed.
Marital love and passion only rarely provide an equally rich source of the exalted feelings, transports of delight and misery associated with love and romance.
But sex is no more a moral issue than eating a good meal.
The fact that we eat most meals at home with spouses and partners does not preclude eating out in restaurants to sample different cuisines and ambiences, with friends or colleagues.
If the internet offers a direct line to affairs, with a proliferation of websites for adults seeking a sexual partner outside of their marriage, it is worth remembering that our richer ancestors practised their own privileged version.
Emperors cavorted with courtesans, kings chose their wives for political manoeuvres and their mistresses for company, the aristocracy married for money and took lovers for pleasure.