He discovered messages on my phone and so I sat him down and poured the whole sorry tale out to him, feeling I was stamping on his heart with every word. I spent a lonely Christmas at my mother's house with nothing to do but wonder how I had got myself into this situation. I started therapy, and learned just how dysfunctional my life had been, and so little wonder I kept making new problems for myself.
I began writing everything down, to help make sense of it, first for myself, then for others.
From the very first meeting, the guilt racked through me.
I was fortunate enough to get another chance to do so, and I'm working at it now. Turned On By Lucy Dent (Doubleday, rrp £14.99) is available to order from Telegraph Books at £12.99 £1.35 p&p.
Call 08 or visit Telegraph Books As the internet plays an ever greater part in our social lives, with sites such as Facebook helping us to keep in touch with our friends, it's inevitable that we also use it to help us run our love lives as well.
It's taken me a good while to fully come to terms with what I've done, to understand how easily I fell into the previously unknown world that I would regrettably come to prefer to the real one.
Luckily, after only a short time apart, my husband came back to me, willing to try to put us back together and realising, in all this, he had had a part to play too.
As I have come to learn, most of those who grow up in a dysfunctional relationship are condemned to seek them out forevermore. In adulthood, I had become a rather complicated girlfriend, each relationship beginning well, but then growing fractured and ending badly.
I am bound to say, though, that I wasn't solely culpable. I ended up marrying one of these complicated boyfriends.
When the time was right for both of us, we would work through our problems and come back to one another. I shed my regulars and concentrated on just one, a man younger than me by almost two decades.
And it was harmless, until I fell in too deep and wanted more than his messages.
Taking my online affair offline was my big mistake, a transgression too far.