“I’ll pay you back.”
“When?”
“When I get settled.”
I laughed once.
Not because it was funny.
“What did the kids need from the cosmetic counter?”
Her expression hardened.
“Why are you making this into a huge issue?”
“Because you went through my office.”
“You make good money.”
“That has nothing to do with permission.”
“We’re sisters.”
“That has nothing to do with permission.”
She rolled her eyes.
“I knew you wouldn’t let the kids go without what they need.”
“Those purchases were yours.”
“I needed clothes for interviews.”
“Have you had interviews?”
Silence.
I looked at her.
“How many applications have you submitted?”
She stood.
“I don’t have to report to you.”
“You live in my house.”
“Mom said this arrangement was supposed to help me.”
“It was.”
“Then stop keeping score.”
There it was again.
Keeping score.
As though noticing an unauthorized charge meant I had reduced love to arithmetic.
I locked the card immediately.
Changed my office lock.
Requested a replacement number.
I did not report the transaction to any agency.
I documented it.
Then I asked Fiona to repay it in writing as part of the household plan.
She called Dad.
Ten minutes later, my phone rang.
He skipped hello.
“Shannon, this has gone far enough.”
I stared at the kitchen counter.
“What has?”
“Making your sister feel like a criminal over six hundred dollars.”
“I didn’t call her that.”
“She’s struggling.”
“She used my card without asking.”
“She said she’ll repay you.”
“With what income?”
Silence.
“Dad, she hasn’t applied for work.”
“She needs time.”
“She’s had months.”
“You have plenty of money.”
That sentence hurt differently coming from him.
“So permission changes based on account balance?”
“That’s not what I said.”
“It’s exactly what you said.”
He sighed.
“You’re becoming very hard.”
I looked around my kitchen.
The cereal Fiona bought sat beside the blender I bought.
Children’s lunch bags lined the counter.
My utility bill rested near the coffee maker.
My work laptop was upstairs behind a new lock because my sister no longer respected the old boundary.
“No,” I said.
“I’m becoming tired.”
I ended the call.
My twenty-ninth birthday arrived four days later.
Nobody in my family mentioned it that morning.
Not Fiona.
Not Mom.
Not Dad.
Grandma Beatrice texted a small birthday cake image at seven-thirty.
Happy birthday, sweetheart. Hope everyone gives you a peaceful day.
The irony almost made me laugh.
At work, my team surprised me with cupcakes.
My manager told me to leave early.
I made a reservation at a restaurant I loved.
For one.
That evening, I wore a navy dress I had not worn in months.
I turned off my work phone.
Ordered my favorite meal.
Then Fiona called.
The call that began this story.
Where are you?
The kids are hungry.
Come home.
I hung up.
Paid for dinner.
But I did not drive home.
I drove to my office.
The building was almost empty.
Security lights reflected off the glass doors.
I used my badge, took the elevator upstairs, and sat at my desk in complete silence.
Then I began gathering facts.
Not revenge.
Facts.
Grocery receipts from the store app.
Utility bills from before and after Fiona moved in.
The unauthorized credit-card charge.
School pickup dates pulled from my calendar.
Messages asking me to babysit.
Workdays shortened because of her “emergencies.”
I created a spreadsheet because numbers helped me separate emotion from reality.
The grocery increase was significant.
Utilities had risen dramatically.
But the money itself was not the most disturbing column.
Time.
Thirty-one school pickups or child-care changes in less than four months.
Twenty-seven dinners I prepared on weekdays.
Nine weekend plans altered.
Six work calls interrupted.
Four meetings I left early.
One birthday dinner she expected me to abandon.
I stared at the spreadsheet.
No single favor looked unreasonable.
Together, they showed a life slowly being reassigned.
Then I opened a blank document.
Shared Living Agreement.
I did not write it like a threat.
I wrote it like a project plan.
Clear responsibilities.
Fiona remained solely responsible for parenting decisions, school transportation, meals, and child care.
I could help when I voluntarily agreed in advance.
No calls to my corporate line except genuine emergencies involving immediate safety.
My home office remained private.
No access to my personal financial accounts or belongings.
Fiona would contribute a reasonable amount toward groceries and utilities once employed.
She would begin an active job search immediately and provide a basic weekly update until she was working.
We would review the living arrangement after sixty days.
If she rejected those terms, I would help her identify alternative housing but would begin the appropriate move-out process.
I printed two copies.