I believe them because they really did get married, which is as freaky as it is endearing; otherwise I'd have written it off just as easily. Much as I adore him, Tom Baker was infamous for hoarding creative control...

That commercial was the essence of freaky and endearing itself. I suppose it's the distance that actually does it for me with Four and Romana - they seem to be having two completely different conversations yet still are the only two people in the room who understand each other. It's the glorious sense of inhumanity of these two. Which really goes to explain why I'm less enthralled with the very human Ten and Rose. I suppose it does boil down to understanding love differently.