Instead of being amused (or amazed) her response was: "So you LIED to me???"
When I got home from work later that night I knew I was in trouble. She kept asking questions about my job, my life, our relationship, and she responded to all of my answers by wondering whether I was telling the truth or not.
Then, the next morning, we had the following conversation:
I'm sorry about last night, I overreacted.
That's okay, don't worry about it.
I'm sorry, that was not the answer we were
looking for... The correct answer was, "No, no. It was my fault. I should not have lied to you."