At the end of her grocery lists, a hidden "I love you"

My wife has had the same habit for decades: she writes a list before she goes shopping.

Small slips of paper, ballpoint pen, small handwriting. The list hangs on the fridge and I buy what's on it on my way home. For thirty years the contents have been relentlessly plain: tofu, scallions, pork ribs, soy sauce. I never thought twice about it — until last month, when we were clearing out old things and I found the dozens of account books she has kept over three decades.

Tucked inside them were the shopping lists she wrote, year after year. I went through them page by page, and at the very end I found a pattern I had never noticed. Some of the lists had an extra line at the bottom, and it wasn't groceries.

"Two pounds of ribs, one piece of ginger. — It's turned cold. Wear your long johns."

"One block of tofu, two scallions. — You said your back hurt. Don't lift anything heavy."

"Three cucumbers, one head of garlic. — Today is thirty-seven years since we met."

"Half a pound of live shrimp. — Your checkup was fine. Wonderful. Let's celebrate."

I took the stack of lists to her. She was trimming vegetables on the balcony and didn't look up. "You saw them?"

"These lines. You wrote them for me, but you were afraid I wouldn't notice?"

Her hands paused on the vegetables. "You're a careless man. When you shop you only read the first few lines. The end — who knows when you'd ever get to it. I wrote at the end to bet on a someday." She looked up at me. "You saw it last month. That isn't too late."

I did the arithmetic. From the year she started writing lists to now, the ones with a hidden line at the bottom averaged seven or eight a year. Thirty years, more than two hundred. Which means that somewhere in the corner of three decades, someone had been regularly posting into my world a sentence she didn't want me to find straight away and hoped I would find eventually.

Some people's love never hangs on the lips. It hides at the end of a list, on the back of a sticky note, on the last page of a ledger. Not because they don't want to say it — spoken love is too loud. Love tucked into ordinary days is just right.

I cooked dinner that night. I took the list that said thirty-seven years and bought every item on it and made a whole table of food. And then, clearing the dishes, I did what she does. I slipped a note of my own into the clip on the fridge.

My handwriting is bigger than hers. It said: "List received. From now on, I'll write the endings."

The next morning, before my shift, I checked her list. There was a new line at the bottom, as expected: "You learn fast. Ribs bought. In the fridge." Our list code had made contact. The whole family knows the game now. Our daughter flips to the bottom of the list every time she comes home — she calls it "my parents' encrypted channel."

Last month my wife went into hospital for a minor operation, and the list was blank for a week. Every day I bought the food and cooked it, and then wrote at the end of the list for her: "Porridge simmered for two hours today, yours is dished out separately. — Remember to eat the oranges by the bed. Get well quickly. I'll wait for you to come home and keep writing."

On the day she was discharged she collected every one of those endings I had written and put them in her account book. Then she said something I have not forgotten since. "When we were courting, love letters went on writing paper. Now we're old, and love letters go on the shopping list. You see — love moves house, and it's still love."