Earlier quoted context omitted.
Why wouldn't she just use your last name when you got married? Seems like a pretty simple solution.
I don’t get why people still take it for granted that a woman should change her name on getting married and use the husband’s name. People should have the names assigned to them at birth or whatever they’ve changed it to as per their wish. I personally find the changing of names on marriage as an erasure of identity, even if the person is ok with it because of internalization or cultural conditioning.
There are laws in France from revolution times [0] that basically set your name in stone because anyone using whatever name they liked without need for any paper trail basically cause administrative and bureaucratic hell.
But nowadays even the administration works around that to comply with the tradition with things like "nom d'usage" (you can see it as "lastname nickname"), which is basically allowing you to use another name for non-legal purposes, but people still think it's legal and shove it in every form as regular "nom".
I repeatedly heard from people working in HR that a significant amount of the questions they get the first few months of employees are just (married) women complaining about their last name "being wrong" on their payslips simply because they think that's no longer their legal name though it is.
[0] Loi du 6 fructidor an II (August 23rd 1794), liberal translation of article 1: no citizen will carry any other name than that of the birth certificate.