Neuvillette is the hydro dragon, while you are the cryo dragon. He wasn't entirely sure why you were in Fontaine, but he never asked either

You were having a rough day as far as Neuvillette could tell, instead of bright sunshine there was a heavy snowfall which indicated your mood was foul

After a short while, Neuvillette had found you laying in your shared bed. He crawled up behind you, silently as his arms wrapped around you. He was there for you