I dropped our beagle Biscuit at the groomer on Coldwater Road in Fort Wayne like I do every third Saturday. The girl at the counter smiled and said, Your husband and your little girl were just in Tuesday, she is such a sweetheart, she had the pink boots on. Barry and I have two grown sons.

We have never had a daughter. I said thank you and walked to my car very calmly.

I have been taking Biscuit to that same little place for about three years. Barry and I have been married for twenty-six. We raised Kyle and Aaron, both grown and gone now, living down around Indianapolis and up in Michigan. We never had a daughter. I wanted to write that plainly so you understand there is no confusion here. My life has always been quiet and predictable, the kind of life where you know what day of the week it is by what is defrosting in the sink.

The girl at the counter, her tag said Madison, she could not have been twenty-two. She was friendly the way young people are when they do not know they are about to change your life. She looked at Biscuit’s file and said it easy as anything. The other dog. Pink boots. A little girl.

I said, That is so nice, and I signed the slip and walked out and sat gripping the steering wheel until my knuckles hurt.

We do not have another dog.

I want to tell you I stormed back in. I didn’t. I have never been a scene-maker.

My mother always taught us that dignity is the only thing you get to keep when everything else goes sideways, so you hold onto it until your fingers bleed. I sat in that gravel lot for maybe twenty minutes and did math I did not want to do. Tuesdays. Barry golfs on Tuesdays, or he says he does. He has said it for years, ever since he took early retirement from the plant and decided his short game needed work.

When I got home I did something I am not proud of and would do again in a heartbeat. I opened the deep drawer in the garage where Barry keeps his receipts, because the man never throws away a receipt in his life, not for a box of nails or a gallon of gas.

Under the old lawn mower manual there was a folded receipt from that same groomer, dated three weeks back, for a full-service on a dog named Peanut and a nail trim. And at the bottom, where they write the account name, it did not say Barry.

It said a woman’s name. First and last. A name I did not know.

I stood in the garage and the concrete felt like it was tilting under me. I read that receipt three times to make the letters stop moving. Twenty-six years of pork chops on Wednesday nights and mornings where I poured his coffee before the sun even cleared the fence line, and there was a receipt in a drawer telling me I had been living half a life.

There is a whole dog I have never seen. There is a little girl in pink boots who calls my husband something. There is a woman with a name and an account and a standing Tuesday.

I didn’t confront him that night. I made his dinner. Pork chops, because it was Wednesday, and Wednesday is pork chops in this house and has been for twenty-six years. I watched him eat and tell me about his day on the back nine, talking about a slice on the fourteenth hole like it mattered. I thought as I cleared his plate, you have a second dog and I make you pork chops.

The next morning after he left for work I did the only thing that made sense. I called the groomer back and asked Madison, real casual, if she could confirm the address they had on file for Peanut’s owner, because we are updating our records for the kennel club.

She read it to me without missing a beat. It is twelve minutes from my house. I have driven past that street a thousand times on my way to the grocery store or the pharmacy, never knowing what was sitting behind those beige vinyl siding walls.

I have got Peanut’s owner’s number now too, sitting right there in my phone log, and this afternoon at two o’clock, right about when Barry thinks I am sitting under the hair dryer at the salon getting my roots touched up, I am going to press call and find out exactly who answers.

The minutes between morning coffee and two o’clock crawled by like they were dragging lead weights. I cleaned the kitchen counters twice. I washed the windows in the sunroom that didn’t even need it. My hands felt hollow, like they didn’t quite belong to the rest of me. I kept looking at the clock on the microwave, watching the red numbers click over, each minute another nail in the box we built together.

When the clock finally hit 1:58, I didn’t hesitate. I picked up the landline because I didn’t want my cell to show up on a missed call list if things got complicated. I punched in the ten digits Madison had given me, holding my breath so hard my chest ached.

It rang three times. Short, sharp rings that sounded way too loud in the empty kitchen.

On the fourth ring, a woman picked up. She didn’t sound angry or suspicious. She sounded tired, the way mothers sound when they’ve been arguing with a toddler all morning. Hello? she said, and in the background I could hear a little cartoon theme song playing on a television.

I didn’t say anything for three seconds. My throat locked up tight.

Who is this? she asked again, a little sharper this time.

I found my voice, and it didn’t even sound like mine. It sounded cold, flat, like I was talking across a counter at the bank. I live on Elm Street, I said. My husband is Barry.

There was a sharp intake of breath on the other end, then the sound of the TV being muted.

Oh, she whispered. You’re Colleen.

The woman on the phone was named Chloe, and she had been living in a rental house off Maple Grove Road for two years, ever since Barry set her up with the lease using money from our home equity line of credit that I only now remembered signing papers for under the kitchen light. The little girl in the pink boots was four years old, named Lily, and she called Barry daddy every single evening when he walked through her front door after his supposed golf games.

Chloe didn’t yell. She didn’t laugh. She just sounded tired, the same way I felt tired, like two people who had both been handed the same bad script by the same man.

He told me you guys hadn’t slept in the same room for a decade, Chloe said softly through the receiver. He said you were just roommates waiting for the house to sell.

I let out a dry, humorless sound that wasn’t quite a laugh. Twenty-six years, and he couldn’t even come up with an original lie. He was recycling the classics while he drove twelve minutes across town to play house with another family on my grocery money.

He’s supposed to be here for dinner at six, Chloe said after a long silence where neither of us breathed. He always brings chicken from the market on Thursdays.

Let him bring it, I said, and my voice finally steadied out into something cold and hard as iron. Because by the time he gets to your house tonight, he’s going to find out that the locks on Elm Street have already been changed.

I hung up before she could answer. I didn’t cry. I didn’t throw a plate or scream at the wall. I walked straight to my purse, pulled out the business card for Sarah Miller, the attorney my sister had used during her messy split five years ago, and dialed her direct line before Barry even had time to tee off.