Explaining romance to Caleb is like teaching algebra to bricks, though you can at least build something with the bricks when you’re done, I don’t expect anything less than a mere scientific shrug. ‘It’s just biochemistry,’ he says. ‘I could plot it on a graph for you.’ You don’t have all the data, I say, testing a hypothesis. ‘And you’re not objective,’ he tells me, ‘so, to which bias do we skew?’ I want to shake him and scream, some things just can’t be measured. How about we call it spooky action at a distance with a sensual slant?