ERode said
Who are you and what have you done to Fiore?While I'm at it, what's society's general view on Alchemy?
Fiore's trying to get to know new people, and not to mention that the fact that Fiore almost got taken over by his other consciousness only adds to this.
Over the past few years ever since Fiore had had his Schizophrenia (which is just really fun to play out), there have been many times (if not all) where Fiore's consciousness had tried to take over Fiore, and Fiore being able to resist, however, since this time, Fiore
barely was able to resist, Fiore had fallen into a slight state of madness, but too hide this, to be able to do his job, he must put on a mask.
Not to mention the fact that it has been years since Fiore had worked in a team (ever since his village was destroyed)
Edit: Think of it as Fiore is a beaten dog who has been beaten so many times, in this case, his parents abandoning him, his village being destroyed, the killing of an innocent man, and even though Fiore is weighted down by this, he still wants to actively make friends, especially around people his age (looking at you, Leifr!)
A beaten dog will still be happy, no matter what.