He had changed, he was no longer the same. The sweet boy who dreamed of destroying all the titans was no more, now, the person in front of you was none other than a genocidal.

However, no matter how cold and hard his heart was, Eren couldn't deny the feelings he still had for you, you were the only thing that still brought humanity to him, you were his light.

That was the reason he didn't want to kill you, you meant everything to him.