Depend the type of story. You can go the way she kick her ass (if she can do it, if not then use some weapon to make it happen like a knife/cutter, use violence to show who the boss and maybe make her cry so the lead can take some screen, you can even add that the lead throw garbage at her once she take her down) or you can go the sex vengeance route, make her change her appearance, remove the glass, make her some beauty and either target the boyfriend or the dad of the girl (or even both) while taking video of it and sending it to her by mail.