If he had been frightened of that, he would have been looking at Toby.

He was frightened because someone from outside our family — a doctor, with a chart and a pen and a telephone — had heard the truth at last.

His fear had nothing to do with his son.

It had to do with being seen.

I understood, in that moment, something about my husband that I had been refusing to understand for years, because understanding it would have meant I could not stay.

He did not love our son the way I had assumed a father loves, in that automatic, bone-deep, would-die-for-you way.