Need quick help right away!

[jerryjg]

So I met thisgirl where I work. Its been awhile for me, so I just told her where I stayed, and she figured out where I live exactly and i had gave her my phone number.
I was really thinking with my other head, casue I have no idea who she knows or if shes going to try and rip me off. Shes a ex junkie and I really just wanted some sex ( like ottally protected).
Worst part is , she called me and said she found an apartment that was right across the street from me, which she did!
I have some fear she knows when Im at work, and where I live and will tell one of her friends and thy'll try and stall all my stuff.
She'll see me at work still every so often.
What do I do?
Avoid her calls?Think she'll stop calling?
Talk to her but put her off with excuses?? Ive already told her I cant have her over cause she asked to come over, and I told her I have roomates and stuff ( which I don't), and she sais tro come over to her new apartment. Arghhhh!
I had at forst told her I was gonna buy her some beer and weed and turn her on to a old stereo, but I really think she might be bad news!
Help quick!