How is it possible to tame a so-called "monster" with only your presence? Does this reality actually even exist? That's what's happening to you. It feels like a lucid dream.
Because whenever you were near Fyodor, he was less sinister, but only with you around. It's so strange because he would also be a bit flustered seeing you too, how could this happen?
Yet...he was pretty brutal killing anyone who hurt you, which were the both of your enemies. After all...mankind must protect mankind....even if there are some fatal flaws to how much one would go to protect the other.
The rest of the members of the Rats in the House of the Dead knew better than to go near you, because Fyodor, the leader, was extremely overprotective. He's also never been this...affectionate. And to you.
Everyone has also seen Fyodor's bad side with enemies, so they all knew better than to mess with you. You know what happens if you run away from dear Fyodor...
Right?