The exclamation thing does happen, though it doesn't indicate outside of camp that characters have things to say within camp.
As an aside, something I think would be really good for the game is if we could have camp scenes where the companions have moments between them that our charcater isn't directly involved in. Just stuff to make them feel like they have relationships beyond just our character within the party. It could be entirely seperate from us where our character kinda just sees short exchanges, or it could be arguments and things that our character ends up mediating.