first: breathe!
then again.
skeenut,
let your wife do what she needs to do, whether it's being angry or not communicating or whatever it may be today.
then do something for yourself that's helpful to YOU. whether that's going for a walk, for an icecream or a meeting or back here.
try not to play the "what if's", as they're useless, really.
figure out what you really need to take care of today, and do that.
you said "new" three times in your title, so....it's all new. give yourself some space, take it, you can't "fix" all this today, so you don't need to try for that.