Your contributions are always valuable and what anyone would be looking for, heartandwhole. Thank you.
I've just updated the poll to add the tracking of emails / sms messages, as that's a good way to begin to look for "evidence".
I'm interested in just simply how we can help ourselves to calm down and see what's really going on. And how that can also help us in the healing process afterwards - when we are doubting, confused, suffused with wonderful memories that create longing, or terrible ones that create anger or regrets/guilt.
The reason for all this, in my view, is that we don't see the evidence clearly.
The Oxford English Dictionary defines evidence : “The available body of facts or information indicating whether a belief or proposition is true or valid:”
One common view is that we 1) perceive the facts and then 2) come to a conclusion = know a thing. Most philosophers and scientists will say that is not how it works at all. They say, that we always believe something first and then seek out the evidence to support that belief. So we could actually believe just about anything; it's all interpretation, at the end of the day.
This poll about the methods we have or can use is a way to figure out if the common view does not actually help us more than we think. If we see 20 incidents that, objectively speaking, show that we were being disregarded when we needed to be heard, for example, then maybe we put the thing together in a different way.
I'm expressing myself badly. Hopefully someone less verbose will come in and rescue me from all my word noodling.
I found that it was hard for me personally to get at the "facts", because I always looked for the grain of truth in my BPD's response. So I needed a lot of facts, a mountain of it, before I could see that, although I played a big part, sometimes things were just damn wrong and unfair and my feelings of being disregarded were justified.
Thank you,

pjstock, for your response too!