But as for bringing up the A and what is the best course, I think it takes a little of both. I understand your need to want to find out more about what happened, for your own peace of mind, but I also understand if some folks would indeed suggest you let it go. So perhaps the middle road you're taking is the best course. As long as your W is still open to your seeking answers, which is as long as you manage to keep replenishing her "love tank", then I myself see no harm in keeping the dialog open in this area. At the same time you must also keep squarely in mind this question: Is asking this dialog taking me closer or farther away from my real goals with W?
I think you have proven after all this time to truly understand this last principle, more-so than 99% of the rest of us. So keep up the good work, bro'.