Atem is killing himself for losing Yugi soul. He had made it his duty and responiablity that he would not let anything ever happen to Yugi and he failed. It didn't matter that the SoO makes a person evil it was still his choice to play the thing in the first place. Even though he has defeat the evil inside him he knows that for the rest of his life wether on Earth or in the Spirit world he has to live with the blood and dirt soiling his hands form that one choice. I can't belive Yugi would ever act this way. I've got this epsoide saved on my Youtube account and I will tell you I cry each and every time. They do care very deeply for one another. If anything ever happen to the other? well the world would be doomed!
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