It's been really interesting reading about your experience, JP. It confirms some of the concerns I would have about getting into a 3dx marriage, and how it might change the experience. But then some players actually want that experience (well, not the negative aspects of it I'm sure, but the commitment.
If your curiosity isn't sated yet, I'd say have a talk with @SusanLouisa and @Vaughan_Rarius. I jokingly call them the power couple of 3dx but fact of the matter is they've been married for a while now and things are still going strong between them. They might offer you some insights into