"But still, [i]why[/i] did you approach him?!", Fili did not want to baby him again, but he wanted to know why Kili would recklessly approach their unstable uncle. He already fooled him with a ruse back in the treasure room, to let his little brother get away. But he didn't expect him to go back with open-minded words. Now, he wondered if they could involve Delva in this? However, the eldest already began to have second thoughts, as soon as he thought about it. 

Now that Kili brought up Delva, the blonde became concerned almost immediately. "Did you find her, at least? Is she okay?", he asked, finally pulling away from his face.