I had been married to my husband for nearly three years, and I had never once walked through the front door of his childhood home.

I called Diane on a Wednesday. Not a Sunday. I didn't want her picking up in that easy Sunday-morning voice so I could be the one to break it.

She answered on the second ring. "Sweetheart. What a nice surprise."

"Hi, Diane." I'd written notes for this. Then thrown them out. "I was wondering if we could get lunch this week. Just us."

A short pause. "Is everything all right?"

"Everything's fine. I'd just like to see you. It's been a while."

Another pause, shorter. "Of course. Thursday?"

We met at a place halfway between our houses — her pick, a quiet spot with booths along the wall and good coffee. She was already there when I walked in. She'd dressed for it. Hair done. The pearl earrings she saved for occasions.

She knew something was coming.

We ordered coffee. We talked about the kids for a few minutes, and she asked about Nathan's job, and I answered all of it. Then she set her cup down and looked straight at me.

"Tell me," she said.

"Diane—"

"I've been waiting about two years for somebody to tell me something," she said. "So please. Just say it."

I went still. "What do you mean?"

"I mean Nathan came home from visiting his father two years ago and something in him changed." She wrapped both hands around her cup. "He started calling more. Asking how I was doing. Asking if I was happy. Asking if his father and I were — fine." She put a little weight on the word. "A son doesn't ask his mother that unless he knows something she doesn't."

"Diane."

"Is there a woman?"

It came out clean and level, the way a question does when you've been holding it for years.

"Yes," I said.

She nodded once. Her eyes didn't fill. Her face didn't crumple. She just nodded slowly, like a doctor confirming a diagnosis she'd already made herself.

"How long?"

"Eleven years, from what I understand."

Her hands tightened on the cup. That was the only thing that moved.

"Do you know her name?"

"Sharon."

She said it quietly, to herself, like she was filing it somewhere.

"How did you find out?"

I told her everything. The trip. The GPS. The window. Nathan going white. Sharon in the armchair. The six words on the porch. The text. The drive home. All of it.

She listened without interrupting once. When I finished, she was quiet a long moment.

"He has a son," I said. "With her. Trevor. Twenty-eight."

Diane set her cup down very carefully, like it was made of something that might break.

"Twenty-eight," she said.

"Yes."

She looked out the window at the parking lot. A woman loading groceries. A man walking a dog. The ordinary world, just continuing.

"I suspected there was someone," Diane said finally. "Years ago. I asked him once. He told me I was imagining things." She paused. "I believed him because I wanted to."

"Diane, I'm so sorry."

"Don't be." She looked back at me. "You're the only person who told me the truth." She sat up a little straighter. "Does Nathan know you're here?"

"No."

Something moved across her face. Not quite a smile. "Good. That means you came because you thought I deserved to know. Not because he sent you."

"You do deserve to know."

"Yes." She picked her coffee back up. "I do."

We sat there another hour. She asked careful questions. I answered what I could. When we finally stood up, she hugged me at the door — firm and warm, same as always — then held me at arm's length and looked at me.

"Don't tell Nathan we met," she said. "Not yet."

"Okay."

"I need a few days." Her voice didn't waver. "There are some things I need to look at."

I didn't ask what things. I trusted her to know.

She walked to her car and didn't look back. I stood in the doorway and watched her go and thought: that woman carried a suspicion for two years, and she carried it with more grace than most people manage with proof.

My phone buzzed. Nathan. Where are you?