What interaction did you hope to see in Game of Thrones?

Game of Thrones dropped the ball on major plot lines that were set up over the course of the show, all of which have been discussed thoroughly in this thread.

But I think the thing that made the early seasons so great were the little bits of dialogue. So what interactions did you wish to see in the TV show?

I really wanted to see a Ghost-Daenerys interaction.. I think that alone could’ve made Jon and Dany’s relationship much more complex.

I am also baffled that we never got a true Jon-Rhaegal interaction. Jon gaining that dragonbond could’ve been a full episode on its own. Something like the way HotD handles those dragon scenes was a necessary part of the story.

Also Arya-Cersei. I thought for sure both of their stories would end with them being face-to-face.

So what is that 2-minute scene that David and Dan could’ve squeezed in that would’ve made GoT just a little better?