Some time later after Darius was split from Brian's body he then explained what happened to him as Brian was resting after being controlled by Darius for some time.
Darius reveals by the attack Brian was hit with by the Darkheart sisters, had "created" him as he was feeding off of the mental health of Brian.
He was jealous of the fact that Brian could live his life and Darius sort of desperately wanted to live life normally and was playing dirty over that.
Brian once he finally woke up remembered everything both from his perspective and Darius's perspective, but had a massive headache.
Darius had glanced and looked at Brian
Brian had left the room holding his head, as the others also in the same room as the all exchanged worried looks as Darius had a very glum expression on his face,