you want me to be frank?
because you chose it, every human being has turned away from God willingly, everyone who is going to hell CHOSE to go to hell, they CHOSE to reject him, and being angry at God for your choice is a little sad, its like blaming the police for going to jail.
And who said God was going to toture you? alot of christians believe he will just leave you alone with the knowledge that you rejected him, and his perfect love, and cut you off from him, which is what you wanted your entire life, which of course will cause you to suffer, others yes believe you will burn, but only because YOU ran into the flames, others think youll merely be destroyed, and forgotten.
all these fates are of your chosing, you chose to suffer and you dont have anyone else to blame, you can get angry and yell its not fair, but you chose it, not God.