[Because timelines, Anna. Let him tell you about timelines.]
Because of what happened on the mountain. [He says it as though he's said it before and is expecting her to remember, then he stops and thinks about it and about what Queen Elsa asked him about what he remembered.]
What's the last thing you remember before you woke up here?
no subject
Because of what happened on the mountain. [He says it as though he's said it before and is expecting her to remember, then he stops and thinks about it and about what Queen Elsa asked him about what he remembered.]
What's the last thing you remember before you woke up here?
[That's a serious business question he's asking.]