I assumed he figured what's the point, the series completed the story. Do we really need to know how it went with Lady Stoneheart? With the white walkers destroyed &, I guess, the last of the Children of the Forest wiped out, & Drogon probably out of the scene, the magic & mystery of Westeros is gone, much as the flight of the Elves & the coming of men left the Middle Earth without its magic. It's time for strip malls & freeways & 7-11s.