So THAT'S what happened **SPOILERS**
I'd seen the Link-gets-angry-at-Mario scene in Youtube and was waiting anxiously to see it on my HDTV. I was intrigued - and a little peeved - when I got the Mario scenario instead.
But still, the fact that Link and Mario (in terms of their relationships with Zelda and Peach) are seen as interchangeable says a lot in favor of Zelink at a franchise level

, at least that's how I interpret it.