On A Date With... [girls only]

You walk home from school when you see a gang of boys teasing a nerd. You look at the nerd and start to cry. Before you know it, they got you and started to kiss you all over. You want to go away but they're holding you tightly. You see a mystery guy but can't see his face, and his clothes were all black and he was wearing gloves. Then he takes you home. He gives you a note and leaves. It addresses your name and you open in slowly. You see a symbol. What is that symbol?