public humiliation

In my dormitory, there was a poor student. With all the good intentions in the world, my roommates and I were eager to help her, not realizing how much our help would cost. She wasn't impressed by the hairdryer we offered, insisting on borrowing a branded one instead. The skincare products we gave her? They were applied to her feet. And, as if that wasn't enough, she specifically demanded luxury face cream. One day, I lent her my tablet to look up some information, and to my surprise, she secretly opened up my gaming app, spent all the diamonds and reward tickets I had saved for half a year, and left me empty-handed. When I asked her to pay me back, she turned the tables and posted a public message online, accusing me. "I'm just a poor student from the countryside, never played games before. Are the materials in the game really worth this much?" Before I knew it, the comment section was flooded with criticisms of me. In a fit of frustration, I fired back with a post of my own, throwing her into the spotlight. "Well, I suppose you've never tasted the bitterness of being cyberbullied, have you?"