I just bought last manga book of this anime and I saw something I think it isn't in the anime (as usual in mangas). There is that scene when Yuno tells Yukiteru that she has been taking advantage of him, also tells him that he needed protection and he didn't care about who could give it to him, he just needeed it.
I know that Yuno loves Yukki, but, she confesses that she has been acting! Does this mean that all the Yandere stuff, killing people, threating, etc, it was all a joke?
I think this because before that, Yukki screams "Are you going to kill all these people?! Even after you sacrified yourself?!"
And she answers "Don't make me tell you, Yukki."
"I just needed someone to take advantage of it, and you just needed someone who could protect you, it didn't matter to you who this person could be"
Again, does that mean that Yuno is not a Yandere after all? Though she's in love with Yukki, maybe she just killed all that people because she wanted to be God (and revive the first Yukiteru). What do you think?