Nothing happened. W ran an errand and came home late. She was in tears. I asked her what is going on. She shut me down kindly. Night over.
Another week of this sh*t.
Next time try a different approach- don't ask her "what's wrong" or "what's going on", instead try "you look upset, is there anything I can do?" If she says no then respond "No problem. I'm sorry you're feeling down." And walk away. It may not sound much different but she will perceive you as being more empathetic and sensitive.
If she doesn't want to talk then you shouldn't take that as an insult or "shutting you down". Just respect her privacy. Remember, this isn't about YOU, it's about HER. She's going through a lot right now, she's on an emotional roller coaster. Don't ride it with her!