I am the same as my backpack, but we are not lovers. People always say we are. Anyway, it's embarrassing. What should I do? I'm a girl.

Change the back of your schoolbag and use this behavior to tell your classmates that you are not lovers. You should study hard when you are a student, when to do something, and don't fall in love, which will affect your study and you will suffer in the future. Never mind what others do, because we are only responsible for our own lives.