False narrative and triangulation?

Tonight she’s gone back to hating me again. We had gone a week tops with little drama but the threat is always there. She flits from crying and begging me not to leave her and next minute it’s boom and she is threatening to leave me. I cannot keep up.

What I don’t get is how she twists the story to fit her side of events. Apparently I stopped her going to a work event and despite me saying I’ve never once mentioned her not going, I apparently did.

Two days ago she was leaving her job. Today she’s using her job as some sort of triangulation against me. She creates dramas around her work to try and bait me. A woman she works with seems to feature heavily in the relationship even though I’ve never met her. I get the impression I am smeared with this colleague. I have read about triangulation and flying monkeys and this all seems to fit but is it usual for it to be some random work colleague?

It leaves me feeling extremely confused and anxious and I have a feeling that’s the intention.

Is the false narrative something that Bpd do and someone tell me what the hell the crazy making up and down behaviour around her job and work colleagues is all about.

No matter what I do it always feels like I’m waiting for her to change completely at the drop of a hat. Almost like trying to hold down a relationship with a shape shifter .