What to do when the person you love tells you to forget about them?

so i love my girl when now shes my ex, she send me so many mean text pages that it broke my heart. she then called me a lier and told me for me to forget about her. then she told me that shes going to make my life a living hell. and that iam going to pay for everything. and the funny thing is i havent done ****. i am so heart broken, i love her so much. idk what to do. i even go 2 skul wit ha. any advices??