Harington said on British radio earlier this month that Leslie stopped speaking to him after he revealed the ending. But it wasn't the series finale ending that he revealed, according to Leslie. It was the Season 7 finale ending. “I genuinely don’t know the ending (of the show),” Leslie tells EW. “He told me the ending of last season and I remember getting a bit uppity about that … He happened to tell me – and this is a spoiler for anybody who hasn’t seen the last season – he happened to tell me that one of the dragons fall into the ice lake, and then we see the dragon being dragged out of the water and the dragon breathes fire — or ice, I can’t quite remember which one it is, I think it’s fire — onto The Wall, and then, of course, that’s when all the (Army of the Dead) can then cross over. So he told me about the dragon and I got rather livid with him, because I said, ‘You weren’t supposed to tell me everything! And that’s a huge piece of information!’ And he’s like, ‘Well, you asked!’ And I was like, ‘I know.'" ALSO: Emilia Clarke invites fans to a Game of Thrones premiere screening.