Hmm. I wouldn't underestimate how much people can ignore. Unless she stopped what she was doing completely and just stood there reading the card, I'd bet that she didn't really comprehend what she was seeing. That said, this scare might be a good time to have the conversation with her, especially if being little is important enough to you that it's something you want to be part of the relationship. Make sure you think about how to have a serious conversation with her. Since you know her better than us, you'll hopefully know if she's the sort to talk about stuff over dinner, or if she prefers taking walks, or sitting down somewhere private, among other things. I always recommend for these kind of things that you open by asking if she's okay with you sharing something and focusing on the thing you want to talk about for a little while. That sets up that 1) if she is distracted or not in the right mindset, you can put it off until later and get a better initial reaction and 2) if she is ready, it puts her on notice that she should pay attention and not just react instantly, which can make the conversation go a lot better.