Somebody taught her that people are resources.

Somebody taught her that care is conditional and affection is a transaction.

She did not invent the ledger; she inherited it, the way I had inherited it from her, the way Iris would inherit it from me if I did nothing to stop the handoff.

That is how these things travel — not through blood, whatever my mother liked to say about blood, but through a thousand small daily lessons about what you are worth and what you owe, passed from one generation to the next by people who are mostly just repeating what was done to them.

And the reason I could feel something almost like pity for my mother, even that day, even with the deadbolt still warm under my hand, was that I understood she was probably passing on a debt she had never been free of either.