The wife just adds the husband's name if she wants, but it's only used in very formal situations.
In general, both forms are used in only writing and more formal situations.
Filipino is also used both in formal and informal situations.
Generally, the term is still considered offensive, and not accepted in formal situations.
Standard Japanese is almost always used in formal situations.
In more formal situations, the given name is to be used instead.
In many formal situations the given name is omitted altogether.
In particular formal situations, such a request can be considered a great sign of trust and intimacy.
Going to the bathroom during any meal is not acceptable but even more so in formal situations.
If used outside a formal situation, the titles might sound ironic.