Ha ha! When you do this, ask your girlfriend if she still needs to read this book. If she says yes, you can save it for her to finish eating quickly. If she says no, you can tell her that you returned the book right away, and tell her that the book cost several hundred dollars. If you don't read it, return it immediately. You must pay back the money yourself. After all, you know your relationship. Do things thoroughly. I wish you smooth sailing on the road of love.