(that's incredibly difficult dude. Here's the reason: (I AM GOING TO SAY THINGS ABOUT JACK THAT ONLY xblurp AND I KNOW THE EXPLANATION TO! IF ANYONE ELSE READS THIS THEY PROBABLY WON'T UNDERSTAND WHY THIS HAPPENED TO JACK, BUT IT WILL BE EXPLAINED. I mean, it kinda has to be if not even the character it's happening to knows why it's happening.) If this were a psychotic break, the reality of it would be Jack would die. What would happen would be that Jack, visualizing the entity, would see it load its weapon, fire at him, and he would be hit by a real gunshot and killed. What everyone else would see is Jack load a slug into his own weapon, he'd aim said weapon at himself, then pull the trigger. The reason for this is perception is reality. In Jack's reality, he got shot by a friend of his whom he thought he'd never see again, but in everyone else's reality he would have simply shot himself. HOWEVER Jack has no prior history of psychosis, this is a separate entity entirely that lives inside of Jack's body and mind. Naturally it wouldn't want to harm Jack because it'd be killing itself in the process. The reason that this is difficult though is because this entity brings Jack to a near psychotic level of rage and power, so it could stand to reason that this entity is psychotic itself. Suicide is considered a psychotic act, to be suicidal is a form of psychosis, as is being homicidal, which is what Jack becomes when under the influence of this entity. If this being is psychotic, it might very well kill Jack without hesitation, but should it be sane it will not want to harm Jack in any way, THAT is why I am having an increasingly difficult time responding to that, I am not the person who is deciding whether the entity is psychotic or not.)