The garden was finished one day while they were both at work. It looked dreadful, but it was exactly what she’d ordered: regimented pink flowers, purple slate, gravel crossroads, eastern deity. They owed me twenty-three thousand pounds, give or take some small change. She got back from work first, saw it and burst into tears. ‘I hate it,’ she said. ‘It’s disgusting.’

That I had not been expecting. When I asked her what the problem was, she said, ‘I don’t know. It doesn’t look like I imagined it would. I hope you don’t think I’m paying for this!’ She started weeping, got back into her car and drove away. I had no choice but to wait for him. When I told him what had happened, he raised his eyebrows, as if at a minor inconvenience, and said, ‘She’ll come round. Don’t worry, you’ll get your money.’

‘Damn right I will,’ I said. ‘You signed the contract.’

‘What will I do when you’ve gone?’ he said. He took me in his arms and clamped his lips on mine.

I pulled away and said, ‘We need to talk. Properly.’ Finally, I thought, he’s realised he needs to leave her.

He was the blushing boy again. I hadn’t mentioned my religious upbringing to him so far; now I was going to use it to my advantage. I’d suffered eighteen years of it, so the least it could do was help me now, I thought. I told him I was a Christian, that I was gagging to go to bed with him, but I couldn’t persuade myself it was all right to go to bed with someone who had a partner. I wittered on about marriage being sacrosanct, adultery an unforgivable sin, all the things I’d heard my parents say. He wasn’t married to her, but they lived together as man and wife—I told him that from my point of view it amounted to the same thing.

I didn’t mean a word of it. I was using sex, or rather the promise of sex, as leverage to make him leave her for me.

‘Are you saying you want to marry me?’ he asked, looking as if the idea was hurting him, scorching his brain. I hadn’t been, but only because it hadn’t occurred to me. I read the truth in his eyes and I knew I was right: he’d proposed to her, perhaps several times, and she’d said no.

‘Yes,’ I said. ‘I want to marry you.’

He gritted his teeth, grabbed his hair with his hands and closed his eyes. ‘I can’t leave her,’ he said.