"We both live in DC."
Are you sure you're not both DC residents for tax purposes? See "Do I have to file a DC income tax return?" in this DC tax reference:
https://otr.cfo.dc.gov/page/individual-income-tax-filing-faqs#:~:text=(A%20resident%20is%20an%20indi...
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
