i had been fighting my arch-nemesis (the relationship was akin to that between harry potter and draco malfoy). i had beat him until he was down, but i knew if i left him alone, he would recover and come back soon enough. so i finished him off with a barrage of poisoned darts.
i stood there, fairly certain that he was going to die, and realized that he was the only person in the world who even began to understand me. and that i couldn't imagine living without him.
i removed the darts, sucked out as much of the poison as i could, and lay down next to him, trying to provide warmth and some healing magic, and waited to see if that would be enough for him to recover.