I think I'm being bullied?

-A guy at my school led me on and I had sex with him. Afterwards he started making up a lot of things and spreading it. No one has physically hurt me but I am constantly getting verbal abuse from my friends which are mostly from boys, calling me names like slut and slag and having no respect. I've been pushed a few times too, I've been shouted at calling me really hurtful names that I won't repeat from people who I thought were my friends but they all think it's hilarious. People have talked about me on facebook, calling me disgusting and theres even a facebook group. The guy is being treated like a hero and I'm being treated like ****. Is this bullying? What can I do about it? How do I stop it?Yes, this is no doubt bullying.

But why did you have sex with him? Were you going out? Were you pressurized?

Report this immediately before things escalate.

Also report that facebook group is it's very offensive - if it's hateful towards someone facebook looks into an can remove it.
Report this immediately to you school guidance counselor, teacher, or parent! Trust me I know it's tough to at first but after you talk to your counselor you will feel SOOOOOO much better. Also don't focus on sex. Read a book or something.
You had sex with him? What was he your long boyfriend or something, because if you had sex with him just like that then you are a slut.