"I'm not a stranger; I'm your wife!"

Translation: Je ne suis pas une étrangère, je suis ta femme !

[DOette]

Why any article before étrangère?

[alex322054]

Why the indefinite article une doesn't become d' in this negative sentence?

[Rix62]

Why not inconnue?

[Coincident_Book]

Why isn't "...je suis votre femme!" accepted?

[GordonMcKa1]

Perhaps because we expect married couples to use the familiar pronouns. Maybe at some time, in some classes this wasn't the case. I guess it's assuming she's only speaking to one person. She might be married to two people.