Neither did I.

But later that afternoon, I began to understand.

Kayla stayed upstairs until nearly four. When she finally came down, she was wearing jeans and a blue sweater. She stood in the kitchen doorway while I prepared vegetables for dinner.

“Can I help?”

I glanced at her.

“You can peel the potatoes.”

She washed her hands and joined me at the counter.

For several minutes, we worked without speaking.

Then she said quietly:

“I wasn’t really trying to steal Andrew.”

I kept peeling.

“I never said you were.”

“You looked at me like you thought I was.”

I set the potato down.

“Kayla, I was upset because you kept ignoring me. Whether Andrew was interested in you was never the question.”

She stared at the sink.

“I guess I thought you’d understand.”

“Understand what?”

She hesitated.

“Marcus used to tell me I was paranoid whenever I asked about other women. He’d laugh at me, just like you laughed when I told you I thought something was wrong.”

I frowned.

“When did I laugh at you?”

“Last year. At Thanksgiving. Remember when I said he was always hiding his phone? You told me not to turn every little thing into a crisis.”

I remembered that conversation.

We’d been washing dishes after dinner, and Kayla had spent most of the evening complaining that Marcus wouldn’t let her look through his messages. I’d told her that constantly checking his phone wouldn’t solve whatever was wrong between them.

At the time, I thought I was encouraging her to communicate with him.

Apparently, she’d heard something else.

“Kayla, I wasn’t laughing at you. I was trying to tell you that you couldn’t build trust by investigating someone every day.”

She wiped her hands on a towel.

“Well, I was right about him. He was talking to another woman.”

I stopped working.

“You never told me that.”

“Because I didn’t want to hear another lecture.”

Her voice cracked slightly.

“Six years, Rachel. I spent six years believing him when he told me I was imagining things. Then I came here, and you and Andrew were acting like everything was perfect.”

I looked at her.

“So you decided to make us uncomfortable?”

She didn’t answer.

“Kayla?”

She swallowed.

“I guess I wanted to prove that your marriage wasn’t as different as you thought.”

There it was.

Not a carefully planned attempt to take my husband away. Not some elaborate scheme. Just a woman who’d been hurt and had started resenting the fact that someone close to her still had what she’d lost.

I could sympathize with the pain behind it.

I couldn’t excuse what she’d done.

“I am sorry Marcus treated you that way,” I told her. “But Andrew didn’t betray you. Neither did I.”

She looked down.

“I know.”

“And if you were angry about something I said at Thanksgiving, you could’ve told me. You didn’t have to punish me for it.”

Her eyes filled with tears.

“I wasn’t trying to punish you.”

I waited.

After a moment, she corrected herself.

“Maybe I was. A little.”

That was the first honest thing she’d said about the situation.

I pulled out a chair and sat down.

“I love you, Kayla. But I need you to hear me carefully. I will help you find work. I’ll help you look for an apartment. I’ll even help you move when the time comes. What I won’t do is let you take your anger about Marcus out on my marriage.”

She nodded, wiping her eyes.

“I’m sorry.”

“What are you sorry for?”

She looked startled.

“Rachel, come on.”

“I’m asking because this morning you were still saying we’d overreacted. I need to know you understand what happened.”

She took a long breath.

“I’m sorry I kept doing something you asked me not to do. And I’m sorry I made jokes about Andrew. I knew you were upset, and I kept pushing because I was angry.”

I felt some of the tension leave my shoulders.

“Thank you.”

She glanced toward the notebook on the table.

“Are you still going to make me leave?”

“Not if you respect the agreement. You can finish the six weeks we originally discussed. But I’m not extending it indefinitely.”

She nodded.

“Okay.”

“And I want you to apologize to Andrew, too.”

She looked embarrassed.

“I know.”

That evening, Andrew came downstairs just as Kayla was setting plates on the table.

She stopped him near the refrigerator.

“Andrew, can I talk to you?”

He put down the glasses he was carrying.

“Sure.”

She glanced at me before speaking.

“I’m sorry I made you uncomfortable. I shouldn’t have involved you in whatever I was trying to prove.”

Andrew listened without interrupting.

“I appreciate that,” he said.

“I wasn’t thinking clearly after everything with Marcus.”

“I understand you’ve had a rough time,” he answered. “But Rachel was trying to help you. She didn’t deserve to be treated that way.”

Kayla nodded.

“I know.”

Andrew picked up the glasses again.

“Then let’s move forward.”

Dinner wasn’t especially cheerful, but it was peaceful.

We talked about Kayla’s job interviews and a temporary receptionist position she’d applied for at a dental office. She asked Andrew whether he could look over her résumé one more time, and he agreed.

I watched them speak and felt something I hadn’t felt in more than a week.

Relief.

Not because everything had been forgiven, but because the rules of our home were finally clear.

Over the next two weeks, Kayla made an effort.

She stopped coming downstairs in her towel. She helped with groceries, cleaned the guest bathroom, and stopped making remarks about Andrew.

More importantly, she stopped turning every disagreement into proof that I didn’t care about her.

One afternoon, she came home from an interview holding a folder against her chest.

“I got it,” she announced.

I looked up from the dining table.

“Got what?”

“The receptionist job. They offered it to me this morning.”

I stood and hugged her.

“Kayla, that’s wonderful!”

She laughed, and for the first time since moving in, she sounded like the sister I remembered.

“It’s not glamorous, but the pay’s decent. And they have benefits after ninety days.”

“It’s a good start.”

She nodded.

“Yeah. I think it is.”

Three weeks later, Kayla found a room to rent in a house shared by two women near her new workplace.

Andrew helped load her suitcases into the car. I packed a small box of kitchen supplies, including two mugs, a frying pan, and some dishes we rarely used.

Kayla looked inside the box.

“Rachel, you don’t have to give me all this.”

“I know. I want to.”

She smiled.

“Thank you.”

Before leaving, she handed me the spare house key I’d given her on the night she arrived.

I looked at the little brass key resting in my palm.

Six weeks earlier, I’d handed it to her because I wanted her to feel safe and welcome. I’d never imagined that helping my sister would lead to a disagreement about whether I had the right to feel comfortable in my own home.

Kayla seemed to understand what I was thinking.

“I really am sorry,” she said. “Not just about the towel. About the way I treated you.”

I closed my fingers around the key.

“I know.”

She hesitated.

“Are we okay?”

I looked at my younger sister, remembering the frightened woman who’d arrived with two suitcases and nowhere to sleep.

“We’re getting there,” I said.

She nodded, then hugged me.

After she drove away, Andrew and I stood in the driveway for a moment.

“Well,” he said, “the house is ours again.”

I smiled.

“It always was.”

He glanced at me.

“You know what I mean.”

I did.

We went back inside, and Andrew headed straight for the coffee maker.

“Want some?”

“Absolutely.”

I placed the spare brass key in the small wooden dish beside the front door, where it belonged.

Then I walked into the kitchen.

Andrew had already poured two mugs of coffee. He handed me mine and pulled out the chair beside him.

For twenty-four years, we’d shared that kitchen through bills, family arguments, illnesses, holidays, and ordinary mornings when neither of us had much to say.

My sister had spent a week trying to discover whether our marriage could be shaken by another woman in a towel.

What she discovered instead was something she hadn’t expected.

Andrew and I didn’t need to prove our loyalty to anyone.

We only needed to remember that we were on the same side.

I sat beside my husband, wrapped my hands around the warm mug, and watched him open the newspaper.

The house was quiet.

And this time, nobody was testing anything.