They did. I think it is their way of saying that you are part of our family. They...truthfully, have never had many other acquaintances besides each other. They usually do not really know what to do when it comes to that...

[He sighs a bit sadly.]

So instead of saying as much with words, they do this. Though, I think you know well enough from their visits that they are quite the chatterboxes once they get going.