“You want me to change my last name to Karlsson?” He shrugs noncommittally. But I see the heat in his eyes. After five years together, I can read him like a book. He wants this. Desperately. “We’re married,” he reasons. “It’s common practice for people who are married to take each other’s name.” “We are married,” I muse. I wear the rings to prove it. Heck, we did it twice, just to make sure it would really stick.