Oh, believe me, I know this would be much better if X had dropped dead.
And not just for personal vindictive feelings. But for all the reasons you list, Gardener. The sympathy, the cassaroles. Never having to deal with seeing X with OW.
It would be complete, it would be closure, unless I was the one who crashed the car or accidentally poisoned the oatmeal, there would be no guilt no remorse, etc.
I had the idea of sitting shiva for the death of the R. In this case, visitors would be ENCOURAGED to speak ill of the dead!
I doubt that at this time frame I would get much time/support from friends for a week of sackcloth and ashes, but the idea does have appeal.
A week of just wallowing. Being supported. Not having to go to work all chip chip cheerio. Yup. Sounds good.