What would be considered a violation in one marriage might be perfectly acceptable for another couple.
However, many polls indicate that seemingly harmless online friendships often develop into intense emotional and physical affairs that can devastate marriages.
Recent research has indicated that online cheating usually leads to physical encounters.
So far, the closest I have come to being chatted up was when, out of the blue, I found myself at the receiving end of a stream of lager-fuelled verbal abuse.
I only hope that this wasn’t supposed to be a chat-up line.
According to some evolutionary psychologists, flirting may even be the foundation of civilisation as we know it.
They argue that the large human brain – our superior intelligence, complex language, everything that distinguishes us from animals – is the equivalent of the peacock's tail: a courtship device evolved to attract and retain sexual partners.
Of course, I’d be willing to accept that the problem lies with me – I’m no Angelina Jolie, after all, and I don’t even own a push-up bra.
Indeed, I did assume the fault was my own, until I realised I wasn’t the only one to have experienced such blatant indifference to my feminine charms.
Flirting is much more than just a bit of fun: it is a universal and essential aspect of human interaction.