The she-elf rubbed her finger against the skin of his hand, really to soothe him from self-blame. But this kind of self-blame was a confession, to show his honesty; how a child would confess when they'd do something wrong. He was somewhat proud to tell her. She understood his loyalty for his family: Fili and Thorin, but Saeril was a completely different half to this loyalty. Another split in his dilemma, trying not to dissapoint or betray the other by going to one side. Kili couldn't perform two different tasks at the same time; not at the same time. The she-elf understood the difficulty. 

"Shh...", Saeril gently shushed him, while using her free hand to stroke his cheek, like how she did back in the Mirkwood Forest, when he was hallucinating. "You should rest", she suggested to him. 

Fili was watching and listening to every word between them. He couldn't help, but internally thank their godmother of saving his little brother from death. "Thank you, sweet Delva", he spoke quietly in relief, and genuine thanks, to the figure who watched over them throughout their childhood. Saeril heard him with those Elven ears of hers, and acknowledged him with a bow of her head; her quiet sign of her generosity. 

She was about to say something, until an earthquake-like shake manifests, causing the house to rumble. Bard made it back inside the house, right after it stopped.