I read on wikipedia that King was shit-faced when he wrote it and, in fact, barely remembers writing it. Surely confirmation bias, but I think that comes across. You can tell he's a bit loose and wild and, while the word is beginning to grate on me, there's a rawness to the writing. It's a bit like the filter is pulled back and the 'off the cuff' is blazing through. There being no chapters, just one irrepressible narrative is the plainest evidence. The way he's talking about the infidelity must resonate with our married brethren. We're good lads who would never roam, but the fear of your spouse doing so is as terrifying as a rabid dog. Whether it was something our boy went through, or not, I don't know but I think he's got the feelings and reaction down.
I know it doesn't have a lot to do with the effect of the horror, but I'm loving this book so far.