Here is different take on this. I think that yin-yang theory supports Gunther and Tiffany is a couple. They fill gaps. Bernice and Piro is another Y-Y but how much do we know about Piro?
Let me add my way-out there comment. I think Gunther would be better off with Tiffany, and Bernice would be better with Piro. Gunth needs a Yang to his Yin, and same goes for Bernice and Piro. Tiffany could use someone who is actually nice and thoughtful. Nuff said.
Here is different take on this. I think that yin-yang theory supports Gunther and Tiffany is a couple. They fill gaps. Bernice and Piro is another Y-Y but how much do we know about Piro?