Huh? I do not see anywhere it even asks if you are married,divorced, single on the application for a passport renewal.

https://eforms.state.gov/Forms/ds82.pdf

Where on what form do you see this question? Provide a link if you can.

There is a place where it asks if YOU have used any other names. Are you perhaps getting confused by that? It refers only to YOU, not your ex-wife.