I did not tell the detective about the shove to hurt Brian, though it did hurt him, and I had known it would.

I told him because it was true, and because the pattern was the point — because a single slap can be called a moment of lost temper, but a slap five months after a shove is not a moment, it is a habit, and habits are what convict people and, more importantly, what warn people.

But I would be lying if I said there was no reckoning in it for Brian, because there was, and he had earned it.

When I said his own words back to him — you two just need to stop provoking each other — I watched him hear, for the first time, what those words had actually been.