What should you put down for your marital status on a passport?
It's never tricky. Married isn't a grey area concept. Are you currently married, legally, recognized by your country, or the country of your spouse? Yes? Write that down. We're done here. Doesn't matter with whom, or how many (well that might depend on the law of the country). No? Were you married at some point in the past? No? Single. We're done here. Yes? Is your spouse deceased? Widowed. We're done here. Are you in the process of divorcing? Separated. We're done here. Are you divorced? Write that down. We're done here.