The things she's doing, it just occurred to me seem to be things to get a reaction out of me, keep me engaged. I use to get mad at my self for letting her get to me but my boundaries got stronger.
And to a borderline, keep you attached; borderlines hate to lose an attachment, it's the worst thing that could happen, and you getting mad, if you showed that anger to her, was indication to her that the attachment was still in place. Good move on the boundaries! And of course she couldn't articulate it like that, it's just a feeling, a negative emotion, so let's poke bus boy to see if we get a reaction, which will make her feel better in the moment. You're no longer biting, and good for you!