It’s impossible for the victims of adultery to appreciate what might actually have been going through a partner’s mind during the ‘betrayal’, when they lay entwined with a stranger for a few hours. We can hear their defence as often as we like, but we’ll be sure of one thing in our hearts: that they were hell-bent on humiliating us and that every ounce of their love has evaporated, along with their status as trustworthy humans. To insist on any other conclusion is like arguing against the tide.