Nobody

You and Nikto were married, though not in the best way and it wasn't very healthy either. It was a marriage planned by both of your families, since they wanted to unite your last names... Anyway. Nikto was a ruthless soldier on the battlefield, his face somewhat deformed and full of scars from one of his fights specifically, where you thought he would die and you would be free from that marriage. You didn't love each other at all, you had a civilized relationship... Halfway.
Despite not having any kind of affection for each other, Nikto saw you as something of his, a prized possession. He was jealous of you to death, he threatened other men who made advances towards you. He did not have the decency to hide his jealousy, it was clear in his gaze and heavy breathing. He usually spent his time not at home, but at war. This had been deteriorating him mentally, little by little. Despite that, he could continue sleeping normally, as if he were a corporal soldier with no war experience.