She called me and said "Hiiii" and I said "oh hey, why aren't you in school?" (thinking it was my friend) and she said "Do you even know who this is?" I said no, and she kept telling me to guess and eventually I said I had no idea and she said "Uh, well bye.." and hung up. I texted her and said that I wanted to know who it was, and she got an attitude and started threatening me if I kept messaging her..I said "k" and she said "I swear if you keep messaging me something is going to happen".. I still have no idea who she is or why she called me, other than she said she got my number from a friend..