Sosio may have felt slightly offended when Ramira said the place seemed boring after a while. The euphoria in the Fletchinder never ended when thinking of that place, until she associated it to the trip she had with a grouch who basically said the same thing the Zorua just did, only non-stop. If the bird were still a little Fletchling and was still pretty light, she would've hopped onto the furry Pokemon's head and tried to convince her that the dungeon is awesome.
Brian, on the other hand, was on a much deeper idea for conversing about. As he spoke on, Sosio's heart became like a volcano, catching fire and burning, visible through her eyes as they lit up at the idea of the unknown and the new. His enthusiasm lit up her own in an instant, wrapping her wings against her chest. It was inspiring, and grand, especially for him to be able to say something and recite it perfectly from his own mind. Sosio had a very hard time translating thought into words.
"Yes! So much! So much to know, to do, to see, and I gotta see it all! Who knows how far I've gotten, but I want to bring every explorer along with me so they can feel the awesomeness, too!"