Doodlemommy53 
welcome.
You're going through some difficult times with a mother (M) whom you think has BPD traits. You aren't alone on this, there's heaps of people here who have similar situations.
Maintaining your relationship with your therapist (T), I think, is very important for you at this stage. Even though the BP party has got the big share of the obvious issues, it can be very taxing on significant others (SO's) and caregivers like you. So I encourage you by sharing with you the hope that you can get peace out of this relationship.
The worst started after my first daughter was born.
When another human (your daughter) enters the picture, one whom a caregiver (you) can invest life energy in to, then the BP party (your M) may act out.
I felt as though I imposed on 3 different families that I cared about during that trip alone, out of my moms doing. She wouldn’t take no for an answer, even if my kids were exhausted.
I appreciate what it's like to give in to someone else's impulses to be around other people. I know the feeling of when we are complicit and thereby imposing on other people.
Then she acted like nothing was wrong and sent me a little text with heart emojis and stuff from my dads phone..
After I had quarrels or disagreements with my Undiagnosed-BPD ex-girlfriend (UexBPDgf), I was thunderstruck by her ability to appear like nothing happened. Two good examples are after she punched me in the face and cheated on me. A fairly common story in this area, so moving forward—there's a lot of possible reasons why people like that do that—and the one I found most helpful for me was this. The understanding that some people like that don't want to bear the responsibility of consequences for their actions. So that allowed me to
accept that it's nonsensical for me to expect from these people an understanding of consequences the way more emotionally intelligent people do. Then don't attack them for their inability (this perpetuates the drama), but really to accept their inability, then don't set them up to fail.
To not set someone up to fail in our eyes I think looks like this. If I had an M like yours, I don't expect her to know what consequences lying to people has. Therefore, I wouldn't expect her to be honest with me. Therefore I don't take what she says as truthful. Therefore I don't get as irritated or angry or upset when I catch her on it because I didn't expect her to tell the truth anyway. It's a bit like dealing with various types of children—but of course keep clear in your mind's eye
she's not your child.
My dad was on speaker phone for this, and it made me wonder why he let this happen too. Or if he knew about her not telling me.
I appreciate the curiosity or surprise you might feel that people are complicit with things that don't make sense to be complicit with. Being an SO of a UexBPDgf, I had skin in the game similar to your dad in this example. I understood more of the
why from the book I've recommended below.
I hope you'll share more and continue to participate. Me too, I got heaps of good vibes and a true treasure trove of tips from this community—I hope the same for you too.
Acronyms
here.
Your story reminded me of a lot of what's covered in
here. It's excellent and I highly recommend it. You spoke about setting boundaries with an M, and I found I got this from the book too:
- discussions about consequences, and the support implied for the non wanting to support their own boundaries
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