My gf's H was my H's best friend. H has only talked to him once since he left and that had to do with a buck contest at work. They work in the same place. If her H had wanted him to know I think he would have told him.
This is your answer. You thought the best friend told him.
While maybe you did, maybe you didn't, he does not need to know that.
You are correct, it is not your job to keep him informed of such things anymore, and honestly, the real reason would not be received well.
Keep your response simple and short.
"Acceptance doesn't mean resignation. It means understanding that something is what it is and there's got to be a way through it."--Michael J. Fox
