It was then that I truly understood how difficult and confusing this path was for him. Our anniversary is always one that we both kind of get sad about. After 9 years being D, I often wonder why. But it doesn't really matter. It just IS.
Something you alluded to in advice you gave to me: Love does not end with D. It just IS. And I don't necessarily mean romantic love. You will always stay connected with you XH especially as you both brought D20 & D17 into this world. I can understand why the anniversary would still make both of you sad.