I like the number 3 point. I am not one of those "pull yourself up by the bootstrap" platitude people, but I also think you personally have to take steps to solve a given personal problem. Unloading what you think at a given moment does not always lead into actions that need to be undertaken.

I do think number 1 can be tricky for couples -- sometimes all you can say is I don't want to do something, which is part of self-autonomy.

I liked that this was based on a study, though the study was focused on how parents confide in their children. The rules of engagement for a how a couple deals with each other will require some nuance and huge differences. You mention not wanting sex -- in a given .situation, saying no is about enforcing body autonomy, just as easily as being punitive. But I like the general theme of understanding when expressing something is narcistic and not really building a shared understanding.