'In the end, once denial is chosen there is no more dissonance as denial is a solution which brings relief.'
I strongly disagree that such a bold line can be drawn between CD and its resultant states, and also that the resultant state brings relief from CD. Denial has to be ongoing each time a new fact which challenges our belief system becomes evident and causes the discomfort of CD. Let's face it, when you believe a hot, steaming pile of errant BS this is going to be frequent. So the interplay between CD and denial is continuous, can't be separated into a condition and a cure. It is the eventual overwhelming CD that wakes us up. And many of us realise looking back that denial was no real relief, in fact brought many stress-related health problems.