I sat at my desk for the next twenty minutes doing something I almost never do: nothing. I just sat there, staring at the wall, running through every possible version of how this conversation could have gone differently. Every version ended the same way. Sarah had made a decision. She had decided that my money was her money, that my credit limit was her safety net, and that I would absorb the cost because I loved her and because family meant swallowing things that should never be swallowed.

I thought about the $800 I had lent her three months ago. I thought about every birthday gift, every favor, every time I had driven two hours to help her move apartments. I thought about how she had not once asked if I was okay with any of this. Not once.

Then I picked up my phone and called American Express.

I told them my card had been used without my authorization. I told them the charge was fraudulent. The representative was calm and efficient. She told me that because the charge was still pending, they could freeze the account and initiate a reversal immediately. She asked me to confirm a few details. I confirmed them.

The charge was reversed within the hour.