They don't speak about the previous night. Anna forces the unwelcome thoughts of that morning away, too, and instead focuses on the now and near-future.
Such as breakfast. Breakfast is fine. It's normal.
It's totally normal to want to take Elsa to this fantastic little café she's visited before (they make the best bacon and egg breakfast sandwiches around). It's normal because Elsa is her friend.
Even if she's only just noticed how much that means to her, it's still normal.
It will be, so long as she just keeps reminding herself.