Fake friends?

I don't mean to be petty, but I need some advice on what I should do. Me and this girl have been friends for 7 years. We've had arguments in the past, but they weren't anything major. July 4th, I've seen her and her boyfriend have been posting things about me and my family and my boyfriend. They called us "stupid rednecks" and said how much of a waste of space I am. I confronted her about it and she deleted me on Facebook (she even said this) so she could talk more trash about me and the people I care about. She screenshotted our private concersation and told me she was going to mess up my face, she said how "dirty my house was and that she should've taken pictures and posted them, she said "In the net year, you'll have 5 guys because every guy you date cheats on you and thinks your family is mental" I did nothing wrong to this girl to trigger her to treat me like this. Would you guys press charges?