I think the OP was rude and inconsiderate to other pax in the cabin. If it's a late night/overnight flight it's obvious people will be trying to sleep. As has been mentioned previously you might have thought you were talking quietly, although later your description changed to "hushed", but maybe you don't realise how loud you speak. I wouldn't have done what the pilot did but I certainly would have complained about the disturbance to a flight attendant. And yes it is public transport but some people have an enhanced sense of entitlement where their behaviour is concerned.