Have you tried using S.E.T. to explain to her that you could not just take the day off of work? If not that then maybe just validation of what she is feeling? I find that even when my uBPDbf needs his space that I keep up at least a minor routine with him of always messaging him good morning and good night. If he wants to talk further he makes that clear to me, but the routine seems to keep us somewhat grounded and let me know where his head space is currently at.
Hope that helps some and goodluck to you
