technological infidelity?

[thir]

I came across an article (http://www.guardian.co.uk/theobserve...-relationships) on infidelity and monogamy with some interesting ideas.

It says that new technology means much more contac than we before, in new and varied forms.That we are more unfaithful than before because of this. And it poses the question whether we have to redefine what infidelity/flirting is:

"Logic would suggest we're having more affairs than ever. We're presented with more opportunities to cheat. We work more and travel more, and consequently are more absent from our homes. The evolving landscape of technology means we are connected – sometimes intensely and continuously – with many more people than before. Technology also means that the very definitions of infidelity have broadened. Emotional infidelities are increasingly an issue; entire affairs are played out online; intense relationships – which may or may not blur the line on friendship, who knows? – flourish via the intimacy of the text message exchange."

Is this true? Is, for instance, an online connection infidelity? Are SMS's?
Where is the line drawn?