“Maybe a better illustration would be a migraine. One moment you’re well, the next you’re in so much pain you can’t open your eyes. Everything is changed. Nothing exists except the throb and fret between your temples, though underneath it all you’re still perfectly healthy.”

“At first I enjoyed it. A fall is a surrender; you can’t help it, you didn’t plan it. Maybe you could have been more careful, but it’s too late for that now—you might as well enjoy the swoop and the speed, the unnerving sensation of having your feet higher than your head.”

“That’s the thing about falling. It doesn’t go on indefinitely, and it rarely ends well . . . plunge, plummet, pain. Even if you get straight back up, even when you regain your footing, after the fall nothing is ever quite the same.”

“Chemistry is an overused word. I prefer ‘fit’, that indefinable sensation when a man takes your arm as you move through a door, or leans into you to light your cigarette. (I gave up smoking for Cary and sometimes I still miss it.) Fit is an understanding between bodies: that you’ve been designed the same way, that you speak each other’s language, and fluently. It’s all about physical compatibility and has nothing to do with whether you’ll last or even have anything to talk about afterwards; fit is no relation to the brain, and only a distant cousin of the heart.”

“Oh, I already loved my husband, of course, but this was different. That had been a decision; this was out of my control, an impulse as difficult to resist as gravity. Mad love, crazy love, drop, sink, stumble. The kind of love where every little thing is a sign, a portent: the song on the radio, his Christian name staring up at you from a magazine you’re flicking through, your horoscope in the paper. Normally I don’t even believe in horoscopes, for God’s sake. Love without holes or patches or compromises, soft as an easy chair, a many splendoured thing.”

“I had learnt from my work: that all pain is erased in the passage of time. Not just by, but in. In ten decades hence it would be as if nothing had ever happened. There would be no relics, no scars. No jug to piece together, no bone fragments to date. Emotions fade and leave no trace. Only the inanimate remains.”

“I’m not proud of any of this, truly I’m not. Looking back I can’t believe how I acted, how each deceit flowed so seamlessly from another. My only excuse is that I was addicted, and like any addict all I could think about was my next hit. Hurting Cary didn’t seem of any consequence, neglecting Sarah or my work was unimportant. All that mattered was Luke and the singing in my veins whenever we were together.”