Hi jinglebells1989,
When I would confront her about a problem with the relationship that she was causing in an effort to help fix it, she would always say little to nothing and her eyes would water as if she was beginning to cry... .and then nothing. A complete shut down at that point and we'd always change the subject.
Could you expand on this with an example of how that conversation might have started? It can be so frustrating wishing to solve something with a partner who seems unwilling to address things. I could hazard a guess that it could be down to her feeling invalidated at a young age when she spoke about her emotions to the point where she simply felt unable to do so at all. There could also be an element of overwhelming shame if she recognised what she had caused/inflicted by her actions, which can affect a pwBPD to the degree that they could shut down emotionally. Then again there's the possibility that she was simply unable to see things from your perspective, as we know that a pwBPD believes what they felt was the way it was (eg I felt suspicious, therefore you must be cheating), as in 'perception is truth' - in the case of a pwBPD this would be 'feeling is truth'. I guess it would be dependent on scenario as to which factor was overriding to create this response.
My ex suffered a great deal from shame for his actions, which translated into either self harm / suicide attempts or projecting anger out onto me in extreme ways. Any attempts to really discuss relationship dynamics were seen as a personal attack on him and would be blown out of the water with a verbal onslaught at best. His self loathing was the driving force. I suppose like anything we look back on from our relationships the key question is what part did we play in this and what have we learned? I certainly have a lot more empathy now for those who do struggle with their emotions - either through repressing/dissociating or dysregulating, as I understand that this comes from a place within themselves that isn't necessarily connected with what's going on in the present. He would connect the dots so often and relate things back to past experiences that had been in some way traumatic and then act out accordingly in the only way he knew how. If we look at the responses in this way, as they are responses to old hurts, it does give a different slant on the overall experience for us.  :)oesn't necessarily make it easier to handle at the time... .
Love and light x