termination of torment with its endlessness

is the torment of Hellish endless or it will terminate? I think both of them are correct.
And if we believe that both of termination of torment and endlessness of torment for Hellish are correct then is there any inconsistency between termination of torment from hellish and endlessness of torment for them? I think there is not any inconsistency between termination and endlessness of torment because the subject of endlessness of torment is infidel with permanence of his infidelity, and the subject of termination of torment is infidel without permanence of his infidelity. I think that Hellish can repent in hell, and kind God will accept their repentance, so if Hellish will not repent in hell they will be in hell for endlessness, and their torment is for endlessness, and if they repent in hell, and kind God accept their repentance they will exit from hell and their torment is terminated.