Well, I don't know if you'd been there yet, but you could be righteous and be her FIRST (and she could be your first too.
Ok, rent "swinfan," the movie that was out recently aobut the pyscho girl. See if she's anything like that.
Since she is the shy one, let her down easy. Draw the line in the sand and that may allow her to back off easy without the pondering possibility of her acting all psycho for all time to come. Honestly, why don't you look her in the eye and tell her that, THEN question why the posting of the letter and why the need to see your house?
Perhaps if you show her what shes doing wrong, she may look and judge and modify her own behavior. If you tell her how and why you are slightly bothered, that may resolve the problem rather than changing a phone. (I mean, hey, she knows where you live, your number, your bus stop, etc. So make life easier on you)
Let us know what you finally end up doing (even if its with her.)
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