"He said, "Is there a reason you aren't wearing it."
D'oh. That right there (and I've heard all sorts of similarly illogical comments from my H, too) really shows how they are struggling and their thinking isn't clear right now. Things like that help me feel compassion for my H rather than criticism. I would think that anyone thinking clearly would put 2 and 2 together upon noticing the ring and think "of course she wouldn't want to wear her ring, I filed for D," no questions needed.
Me:30 H:29, no kids T:12, M:4 (when D was final) 12/13: "Don't think I want to be M anymore" 6/14: Separated (I move) 1/15: H filed for D 5/15: D final