Does not include the dialogue (Dragon Age: Inquisition)

Hi all. Don't know if anyone have. But.. Start a romance with Cullen. A kiss, then the dispute between him and Cassandra. And then the quest for dialogue with Cullen. I'm getting to. Amkay. And nothing happens. Dialogue does not begin and all :(
What to do?
Teleports and kV did. Nothing helps. Maybe it was one? It is necessary and in what order to pass? Maybe that's not what made