"They have, and they will. We all will." In this, Dimitri is certain. He's grieved that he can't do more now, but at the end of this, they will be together, and they will be free. It is the only possible outcome.

He kisses Dedue's knuckles again, and rests his forehead on their joined hands for a breath before looking up. "I have to go. We need to find a way to release you all before that women realizes her trinkets have broken free. But I will return to you, I swear it."