Why is my old high school wanting me to come back when I didn't like those people?

[Billy]

Seriously. If I would have known that they were using me I would not have stayed. I wanted to go to a private school and I was not able to because my mom just didn't like me and made me attend a public school. Now someone made me re-live the past and all I can think about is the bad times and how much I hate those people. Then an old teacher bugs me on facebook while I am in a college class to harass me but when I was in high school she kissed me in the hallway.
Not to mention they made me play football when I hated to play football.

[epicicity]

To directly answer your question, for some reason they want to 'use you' again.

Don't worry about it.
Don't go back.
Block the teacher from your Facebook page.
The End.