If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
What's wrong with selfish desires?
I would say that for practical purposes, we could distinguish "selfish" desires from simple "desires," as being ones which place an inappropriate degree of burden on other people. After all, in general usage, we tend to use selfish to mean "privileging oneself over others to an inappropriate degree," not "concerned with oneself at all."
In that context, "I need you to definitely stay dead forever so I can stop worrying about it," seems like a good example of a selfish desire, and rather more like something one would apply to a comic book archenemy than a loved one.