You had an argument with a stranger after she took the last book you had been waiting for for months now. Even though you saw it first, she took it, and you fought like children

The next day, you're walking the halls of your university, focusing on your phone, looking for a way to buy the book that's out of stock everywhere when you bump into someone. You look up to see the girl from yesterday, with the book in her hands "Are you following me or something ?" She said with a smirk