For many teenagers, it's all melodrama in their lives. (Remember Romeo and Julet?) And they're trying to develop their own identity, which for some unfortunately means finding faults with their parents. (Mark Twain: "When I was 18, I thought my father was completely uneducated. But I was amazed when I turned 21 at how much the old man had learned.")
And your daughter has learned an important lesson; sometimes you REALLY don't want to know the answer. This will serve her well later in life.