Zero K by Don DeLillo:
I’m standing at a bus stop when Emma calls. She tells me what happened to Stak, using the least number of words. She tells me that she has quit her job at the school and given up her apartment here and will stay with the boy’s father and I can’t remember whether they were divorced or separated, not that it matters. The bus comes and goes and we talk a while longer, quietly, in the manner of near strangers, and then we assure each other that we’ll talk again.
I don’t tell her that I saw it happen.