Anyway, I asked her gently about what I should do when she gets like this. Since she doesn't even remember (or believe) that she said those things, I used my notes since it contained direct quotes. She got even more upset and said that she doesn't understand why I still love her and that she's not worthy of me. ("I don't deserve you", "I should just leave" "Why do you still love me when I act like this". More on this later)
dayglo,
I got a chance to review your earlier 'a newbie question' thread and while boundaries are a very important topic, I'm not sure if that's the best approach or focus for your situation.
It sounds like she cycles between Anger and Depression/Guilt.. Mood swings that sound somewhat similar to bipolar disorder (cycling between mania and depressed moods)... YES you do need boundaries for your and your son's own personal mental and physical health. BUT what you're dealing with is irrationality from her, extreme mood swings that seem to be caused by a lot of unresolved emotional pain and hurt in her nervous system.
So another strategy to consider is trying to figure out ways to diffuse her anger and depression. Trying to train her with strong hard line boundaries and limits, could be counter productive as they might ESCALATE her anger or depression. Distraction and Humor are two strategies that can work well with women, if you can change the topic to something else, she may temporarily forget the issue, if you can make fun of it by exaggerating it to extremes in a light hearted way, her mood can also ease.
Ultimately though, you need to help guide her to be more conscious of her own stress levels and how to manage her stress levels. Learning grounding techniques and practices which can keep her in her body instead of getting overwhelmed with past emotional baggage. Also she needs to find a place of safety, where she can let her guard down. Until she feels safe and stable, she can't really effectively even address or acknowledge any of her past hurt and pain.
Right now she's just stuck in a defensive/survival mode... She uses anger to defend against feeling her own pain and future pain, but you end up being the easy projection to blame and attack. Then when she's weakened, she uses personal shame and guilt, to push you away, create space, and deal with her depression & emotional fatigue...
ohhh... and another idea..... since her behavior might have been triggered by both her parents dying.... that huge personal loss may have triggered more stress in her nervous system. Grief is a lot of work, she may be avoiding grief and feeling the pain of her loss by focusing on you even more with anger, guilt, codependence, shame, fear, etc. It's an unconscious distraction method, grief is very difficult... 2 important parts of her life story are now gone, and she needs to let go of that old story, and accept her new life without them being alive.
So... trying to help her mourn and grieve for those huge loses also might be part of her core issues.
Hope I didn't jump around too much, but I don't have a lot of information to work with. And descriptions of her surface behavior and what she has said, is typically distractions. So it takes a bit of work to decode things, look for patterns from history of behavior, and then eventually discover what the 'real' issues are.