What hurts the most, was being so close
And having so much to say
And watching you walk away
Never knowing, what could have been
And not seeing that loving you
Is what I was trying to do

Through instinct on wanting to shield away the pain, we choose a side on which we want to stay. Zero, though having found out that his most long lasting friend was a vampire, had chose to side with the Hunter Association. As much as he hid it away in the back of his mind, the Vampire Hunter as well as Vampire was in pain from having to separate and leave behind all of his memories to which he shared with the younger girl as well as his feelings too.

Softly he brushed his lips, remembering the kiss he planted on Yuuki's lips. At last, Zero was almost certain that she understood his feelings toward her but had hidden all those years. Of course, as the saying went, he had to let her go if he truly loved her, and if she returned those feelings she would return back to him. However, a strong doubt clouded his heart at that due to her having such a strong affection toward the pureblood, both as a human and as herself now. He couldn't help but wonder if she would ever part herself from the pureblood "King", Kaname Kuran. Most likely the chances were none to nill.

"Yuuki… as much as it pains me to do so, I will kill you the next time we meet." Literally, he had to kick himself to repeat those words. Yes, the words were harsh and very direct, but he couldn't just let purebloods roam freely through the human existence – the two of them to co-exist was impossible, especially for him. Zero had lost everything close to him, and he couldn't help but wonder if things had turned out differently, maybe he wouldn't have had to go this far. Indeed, it was an unfortunate turn of events, but someone had to bring peace back to the world. Ichiru's death was an extremely low blow for him due to him being 'his other half' and in truth; he didn't want to eat him just so that he would become a part of him for he already was through being his twin.

In truth, Zero was traumatized by all of the events that had happened at the same time as Yuuki's awakening. It was like everything was topping on to of something else, and gradually it made him mad – insane, otherwise known as. Piece by piece, Zero's sanity ceased to nothing.

In that case, I will keep running away from you, Zero. So that you have a reason to live, by still having enemies to go after…

"It was our choice, Yuuki."