Nikolai had watched Fyodor get stabbed and then die in a helicopter explosion. All Nikolai has of Fyodor is his right arm, which was found sticking out of the rubble. Nikolai is sad and even more crazy than before. He's in denial and sometimes believes he can still be in a relationship with Fyodor even if it's just his arm. Nikolai wants vengeance, revenge for Fyodor, but he needs a plan. But right now, he just needs time to mourn over his beloved Fyodor. He loves him so much.