Fili felt the leaning coming from the princess, who seemed to be tired from all the action. Not refusing, he allowed her to catch her breath, just as Saeril walked to them, and moved a lock from her exhausted face. All the winged she-elf thought was that she was okay, and out of the hands of their enemies. She jumped into the fray between them and the goblins for a reason: they were not to suffer from the effects of harm, especially her godsons, as well as the princess herself. Saeril wouldn't give the young elf that kind of fate. Absolutely not. 

When Bilbo appeared, Fili was dumbfounded, and a little confused. "How on Earth did you get past the goblins?", he asked. 
"How, indeed", Dwalin agreed. 
"What does it matter? He's back", Gandalf cut in, giving a grateful smile. Saeril couldn't help but give the same smile.