His question was about her knowing the people...she didn't. That was what he wanted to know. Frankly, I don't blame him for not wanting to chit-chat with OH right now. She has made it clear that he is a disappointment to her and that she doesn't love him. What is there for him to be chatty about???
And what was unanswered or said? I am missing that from the actual words spoken.
As for "any time" or "only when convenient or beneficial" I thought we were talking about the "incident" from today. Dragging historical problems into the discussion is a sure-fire way to derail ANY chance for a positive encounter.
I responded to what OH stated. She said that her problem with this discussion was that "I can't even ask him why he wanted to know if I knew them"...This WAS clearly answered. IF he had pulled some random person out of the air and said do you know so & so, I would agree....but the fact is, it was explained...he received an email from them about doing work. It is flat out nitpicking...based on what she said about today's discussion.

Don't go shaking the [Bleep!] tree and expect an angel to fall out.

Liars lie and cheaters cheat...know it and don't be surprised. Protect yourself.