So I paid £119 for a month's membership, giving me an entre to thousands of faithless females.

They are allowed to sign up for free as a way of ensuring the numbers are balanced between the sexes.

"I want a man with a personality and looks to take my breath away." These are the requirements of the dark-haired, dark-eyed, 37-year-old Asian beauty who has sent me her romantic wish list.

Your picture can be viewed only if you give a password to the person with whom you are conversing.

The idea is presumably to safeguard people from searching for their own spouses on the site - though how a husband would explain to his errant wife how he came to stumble across her picture on a website for adulterers, I don't know.

Reading between the lines, I suspect she wants to meet again.

Sadly, I feel I have got all I want out of our brief relationship - two cups of coffee and a short conversation - and it's time to move on and find someone new.

In the end, we agree to part and she wishes me luck and assures me I'll find the perfect paramour. This was like having a meeting with a new accountant with a helping of self-disgust thrown in.

Later on I'm perplexed when she sends me two flirty text messages.Many of them are middle-class, many have young children.And all of them are looking for an opportunity to betray their spouses. But I wanted to find out what sort of woman uses such a site.In order to fit in with the general ethos of the website I have invented a wife.Our relationship, I note, has suffered because we don't spend enough time together (not surprising really, since she doesn't exist).After discussing how mundane marriages become and avoiding questions about my personal life, it's clear we're past our sell-by date after ten minutes, never mind ten years. She doesn't want to discuss her husband, and I feel uneasy talking to her.