The little blue box sat on the high shelf above Greg’s side of the bathroom sink, tucked behind his shaving things. I only reached for it before Christmas because I was trying to figure out which cologne he liked. I thought I’d buy him something similar, which now seems like a very normal, very stupid thing to remember.

I tipped the box toward me and saw twelve condoms inside. All expired in 2018. I looked at the dates, then looked again, because they were old enough to belong to the time before Greg and I were together.

We started dating in 2014, and after the first month we stopped using condoms. I figured they were from his single days, left over because nobody throws out a box of something they forgot they owned.

Honestly, I wasn’t bothered. It seemed sensible to keep one or two around, even if these were ancient. I put them back and picked a cologne bottle to smell. That was it. The small blue box went back on the high shelf, and I went back to thinking about Christmas.

Greg and I had been together nearly ten years. We weren’t married, but we shared the apartment, bills, groceries, and the kind of routine that makes a person stop noticing how many things they’ve agreed to trust without looking at them. Greg traveled for regional business now and then. I didn’t ask for his hotel number or check where he was every hour. He’d text when he landed, complain about airport food, and come home with laundry.

I work in a hospital, so I’m used to taking things one step at a time. You look at what’s in front of you, you write down what matters, and you don’t decide what the whole story is before you have the facts. I thought I was doing that when I saw the box again on Tuesday morning.

Greg was leaving for a few days. His suitcase was open on the bed, and he was checking the charger in his work bag. I remember that because he’d forgotten it the trip before and had borrowed mine. He zipped the suitcase, leaned over to kiss me, and said, “I’ll call after I get in.”

“Don’t let them put you in the middle seat again,” I said.

He laughed. “I’ll try.”

Nothing felt wrong. That’s the part that still bothers me. I wasn’t waiting for him to leave so I could inspect his things.

I was just in the bathroom, saw the high shelf, and thought of the box. I can’t say why. Maybe because I’d noticed it before. Maybe because of the trip. I took it down.

There were nine.

I counted them once, then again, lining them up on the counter so I wouldn’t be doing that thing where I convince myself I miscounted. Nine. Three missing from the twelve I’d seen a month earlier.

I put them back in the box. I didn’t take a picture then. That came later. At the time, I just stood with the box in my hand and tried to make it ordinary. Maybe I hadn’t counted right before. Maybe there had been nine all along. I knew there had been twelve, but I also knew how easy it is to tell yourself your memory is bad when the other possibility is worse.

Greg called that evening from his hotel. The call was short. He said he’d gotten there, the drive from the airport had been slow, and he was going to grab something to eat.

“Everything okay at home?” he asked.

“Yeah. Quiet.”

“Good. I’m beat.”

I didn’t ask what he was eating or who he was with. I didn’t want to become the sort of person who used a phone call to look for a lie. Still, after we hung up, I kept thinking about the number. Three missing. Not one. Not a packet that had slipped behind the box. Three.

The next morning I took the box down again and photographed the remaining foil packets. I felt silly doing it. Then I thought: if I’m wrong, I can delete the pictures. I checked the stamped numbers along the foil edges. They all looked alike, a little row of letters and numbers I had never had any reason to read before.

I didn’t know much about batch codes. I did know the expiration date was four years past. I knew Greg and I hadn’t used condoms since the first month we were together. And I knew someone had taken three.

The house felt too quiet that day, but not in a dramatic way. I made coffee. I answered messages. I went to work. I put my phone in the same pocket of my bag where it always goes, and I checked it too often anyway.

Greg sent me a picture of his dinner. It was a plate of pasta with a hotel fork beside it. I stared at the picture longer than I should have, looking for something that wasn’t there.

“Looks better than hospital cafeteria food,” I texted.

“Not by much,” he wrote back.

I could have asked him about the condoms right then. I didn’t. I told myself I wanted to be fair. The more honest answer is that I was scared he’d say something easy and plausible, and I’d let him, because I didn’t want to lose ten years over a box.

The thought made me mad at myself. I didn’t want to be counting old foil packets in a bathroom. I also didn’t want to pretend the count didn’t matter.

Greg came back Thursday evening. He rolled his suitcase inside and set it near the bedroom door. He looked tired, though that’s how he usually looked after travel. He mentioned a delay and how the airport coffee tasted like burnt paper.

“Did you eat?” I asked.

“On the way back. I’m fine.”

He kissed my cheek. I smelled his usual deodorant and the cold air from outside on his jacket. He put his suitcase away without unpacking it. I went to make dinner. We talked about an appliance repair and whether we needed more detergent.

It all sounded like us.

I waited until the next morning. I’m not proud of that. I kept acting normal because I wanted one more piece of information before I let the fear take over. I’d seen nine on Tuesday. If the box was still at nine, then maybe I’d have to ask where the other three went. If it was back to twelve, I didn’t know what that meant, but I knew I had to look.

I took the blue box down.

There were twelve again.

For a few seconds I didn’t move. I put the packets on the bathroom counter and compared the stamped codes with the photos on my phone. The three I’d photographed Tuesday were the same three in the box now. The numbers matched. The small creases along their edges matched too.

Somebody had taken them from that shelf, carried them away, and brought them back.

I took a picture of all twelve. Then I put the three with the little crease marks beside the box and looked at them until I stopped trying to make it a mistake.

Greg’s toiletry bag was on the bedroom dresser. It was the one he always took on trips, a dark zippered bag with a narrow pocket inside. He’d left it partly open while he unpacked. I stood there a long time before I touched it. It felt like a line I didn’t want to cross, even though it was sitting in our bedroom and I’d been looking at evidence that came from our bathroom.

I checked the narrow pocket. The fabric had a couple of pressed marks in it, but I couldn’t prove those were from the condoms. That part could have been anything. I didn’t want to tell myself it proved more than it did.

I checked the travel schedule he’d left on the desk. It listed a meeting with a business contact named Mara and a hotel overnight. There was a dinner charge for two on his card. I knew that didn’t prove he’d cheated. I also knew he’d gone away with three condoms from a box he had no reason to use with me.

The detail that mattered was simpler than the rest. He had to reach up to the shelf. He had to choose three. He had to put them in his bag.

I took the box and the three packets to the kitchen. I set them on the table, then made coffee because I didn’t know what else to do with my hands. I waited until Greg came in. The coffee smelled a little burnt. I remember that. I remember the stupid little spoon tapping the side of my mug.

He looked at the box. His face changed before he said anything.

“What’s that?” he asked.

“You tell me.”

He came closer but didn’t pick it up. “Those are old.”

“I know. They expire in 2018.”

“Why are you going through my stuff?”

“I’m not going through your stuff. They were in the bathroom.”

He reached for the coffee, then seemed to forget why he’d reached. I watched his hand stop over the table.

I told him the numbers. Twelve before Christmas, nine Tuesday morning before he left, twelve Thursday night after he came home. I showed him the pictures on my phone and pointed to the stamped codes. I didn’t raise my voice. I wanted him to hear every part of it without being able to say he hadn’t understood.

He rubbed his forehead. “I don’t know what you think this means.”

“I think you took three with you.”

He looked down at the box. “They’re old junk.”

“Then why did you bring them back?”

He sat down. I stayed standing. He said he’d packed them by mistake, then said he might have meant to throw them away. Those answers didn’t fit together, and he knew it. I asked him where he’d put them while he was gone.

He didn’t answer.

“Were you planning to use them?” I asked.

He let out a breath through his nose. “Nothing happened.”

That was the line he wanted me to accept. Nothing happened. Like the only thing that counted was whether he had actually touched somebody. Like the choice made before he left was just a thought that had wandered into his suitcase by accident.

I asked, “With Mara?”

His eyes went to me, then back to the box. He said he’d meant to meet her after dinner. He said they’d been talking at work and that he’d thought something might happen. He’d taken the condoms because he didn’t want to buy a fresh pack and have it show up on a card or a receipt.

He didn’t say it all at once. I asked questions, and he gave me pieces. He said they were in his hotel room. He said he’d taken the packets out. Mara noticed the expiration date. Or he did first. He wasn’t clear, and I don’t know if he remembers it the same way now or just wants it to sound less bad.

“They were expired,” he said. “We stopped.”

“You took them there intending to use them.”

“I didn’t use them.”

“You took them.”

He looked at the table. The three packets sat between us, their little printed dates plain as day. He said he’d brought them back because he got nervous about me noticing the box. He’d put them back where he found them. He thought I wouldn’t count.

I kept looking at him, waiting for him to say something that could make the facts smaller. He did try. He said he was lonely on the trip. He said things at work had been stressful. He said he’d never gone through with it. He said it was stupid and he was sorry.

I believe he was sorry. I also think he was sorry he got caught.

I wish I could say I was calm because I knew exactly what to do. I wasn’t. I kept picking up my mug and setting it down without drinking. I was thinking about every time he’d called from a hotel room and every time I’d said, “Have a good trip,” as if we were still on the same side of things.

The worst part wasn’t the dinner charge. It wasn’t even the woman. It was that he’d looked at our bathroom shelf, taken something from our shared home, and made a plan around not leaving a paper trail. He’d counted on me not checking. He’d counted on the ease of our life together to cover what he was doing.

“You brought them back,” he said. “Nothing happened.”

The thing I said next was the only thing I remember saying without having to work it out first.

“You packed the intent when you reached for that shelf.”

He didn’t argue. He sat there with one hand over his mouth, and I looked at the box instead of him. I didn’t want him to explain the words back to me. I didn’t want to hear that he loved me, or that it was a bad choice, or that he’d never do it again. Maybe he meant some of those things. They didn’t change what he’d already done.

I told him I was leaving. He asked if I was serious.

“Yes.”

He asked if I could stay until we talked more. I told him we had already talked enough for that morning. Then I took my apartment key off my ring and set it beside the box.

I packed a small bag with clothes, my medicine, my work shoes, and the folder with my insurance papers. Greg stayed in the kitchen. Once, he came to the bedroom doorway and said, “I didn’t want to lose you.”

I was folding a sweater. I said, “You had to know this could happen.”

He didn’t answer.

I called my sister from the car and asked if I could stay with her for a few nights. She said yes without asking me to explain. I went through the practical things later: the lease, the electric bill, the bank account we used for groceries. We had to divide the shared bills and decide who was staying in the apartment. It was all dull paperwork, which in a way made it easier. There were dates to sign and calls to make. One task, then the next.

I didn’t throw the condoms away. I couldn’t have said why. Maybe I wanted the facts where I could see them, rather than letting Greg turn the whole thing into a misunderstanding I’d imagined. Maybe I was just too tired to clean up after him.

By the time I left, the kitchen table was bare except for the small blue box in the exact center. Beside it sat one set of brass apartment keys.

The door clicked shut behind me.