Jenny worked for a web-based travel agency and she'd just come back from a nine-day trip to Mauritius and the Seychelles checking out hotels, which she told me, rather unconvincingly, was harder work than it sounded. That was the cue for us to talk about travelling and share the usual backpacker stories.

The thing I found about talking to Jenny was that the conversation always flowed naturally. I never felt like I had to put on a front, or be someone I wasn't. Maybe that was because as Dom's girlfriend she'd always been untouchable so there'd never been any need. But tonight we both avoided any mention of Dom, and when we finished our drinks Jenny bought another round, insisting I have something alcoholic so she didn't have the guilt of drinking alone. I plumped for a vodka Red Bull, hoping it would perk me up.

'So,' she said, returning to the table with the drinks, 'did you ever finish that book you were writing?'

A little bit of background here. In the days when Jenny was seeing Dom, I was working on a book. In fact, I'd been working on it for a grand total of three years, ever since I'd cashed in my share options and left the investment bank where I was employed to begin a new life in rural France with Yvonne and our then one-year-old daughter Chloe. It had always been my ambition to be an author, and I'd done enough writing in my spare time to think it was worth trying to make a go of it. It was going to be my retirement plan. Pen a succession of popular and critically acclaimed novels while growing organic fruit and vegetables on our idyllic patch of Burgundy countryside.

Unfortunately, it hadn't worked out quite like that. The book in question – Conspiracy: A Thriller, a high-octane page-turner set in the murky world of high finance (that was my tag line) – turned out to be one hell of a lot harder to write than I'd thought. I just couldn't get the plot right, and when I did, the end result was seven hundred pages long and possibly the most unthrilling thriller I've ever had to read in my life. During all this I'd become almost impossible to live with, and the idyllic Burgundy countryside, all those hundreds of square miles of it, had begun to drive me mad. Worse still, Yvonne loved it.