My BPD friend (diagnosed) has simply stopped answering any of my communication attempts , text or email , no matter how nice I try to be , we have not had a falling out or anything of that sort, (as unusual as that may seem

but she has just refused to respond. About once a month she has just sent a nice little message saying some trivial little sweet nothing, but will not respond to my multiple replies, this has been going for about 3 months now. Maybe she is just pulling the line to see if I'm still there?
Has anyone experienced anything like this ?
I'm wondering if she will text on Christmas day to wish me a merry christmas or such-like ? If she doesn't , maybe I won't contact her this time.
After 9 years of intense contact, she has just drifted away , she has often 're-cycled' me, seems no matter how long you know a BPD , the weirdness never ends. Maybe I have been painted black ?
Oh well , I am painting my Model T black , which will look great, and I shall be getting on with other things which don't include her!