This is NOT about a credit card. This is about lying and keeping secrets. None of which has any room in a marriage. this could as eaily been a child the other didn't know about, or a lover....but it's a credit card...same thing.
We have 2 that are joint accounts, but I have one in my maiden name that I have had for 20 years. We use this one for internet purchases, since my maiden name is something generic like SMITH and my married name is extremely rare. My husband is on the account as an authorized user, but does not have a card.
My mother's friend told me, when I got married, to keep ONE credit card in my maiden name, in the event, he dies, we get divorced, etc. It's not that I'm counting on that happening, but am preared in case it does. Just easier to change everything back, if need be.
I also got married about a year before I finished grad school, so my first 2 degrees were in my maiden name and I had my 3rd one printed to show my maiden name as well. When they called my name on stage for graduation, I had them call my married name. Once again, if something happens, I don't have to change anything and go through the hassle of re-printing my degrees. My husbamd really wanted my married name on the degree, but I told him I was taking his last name, so he needed to get over it. He did.