You are abroad now and have been reading the book she gave you. Of course, she has read this book before. So she is naturally familiar with your signature change. According to the logic of love, people think that if you don't love her, you won't read that book again, so people imply that you are her pride. Further calculation, now that you are abroad, you propose to break up. It is possible that she is testing the shelf life of your love. Answer finished, thank you!