Hi Eastcoast16,
I'd like to join the others and say Welcome
I'm on these boards because my significant other (SO) has an undiagnosed BPD ex-wife (uBPDxw).
Clearly there are somethings going on between your mom and her sister. But something I want to point out is that fear of abandonment is at the heart of BPD and your mom had just lost her mom... .death the ultimate form of abandonment. So she was probably deep into those kinds of feelings. For people with BPD feelings can equal facts. So her feelings can be very real to her when the facts are something completely different.
People with BPD also often see things in black and white terms, so she can't see that you can love her
and your Aunt, she can only see that you love her
or your Aunt.
So your mom is at her Mother's funeral feeling abandoned, she doesn't have a good relationship with her sister, and you spoke to her sister. You did absolutely nothing wrong speaking with your Aunt, but your mother is seeing everything through a distorted lens.
You know your mom's behavior is irrational what if you just told her that you will not keep discussing that topic, if she continues to bring it up let her know that you will be leaving or if on the phone hanging up the phone and will see/talk to her at a better time. (If it were me I'd take the kids too... .Grandma is not feeling good today kids we will come back another time.)
I want to share information on JADE (Justify, Argue, Defend, Explain)... .
https://bpdfamily.com/message_board/index.php?topic=139972.0In terms of the funeral incident you did nothing wrong, as hard as it is try not to JADE it will just lead to drama and circular arguments. If you just let her accusations lay there and don't pick up the bait she will have no fuel to keep the drama on this subject going. By creating a boundary of no longer discussing it and ending the visit/phone call when she continues to push it you are enforcing your boundary.
Hang in there it takes time to see a lot of this stuff for what it is and by coming here you have just landed in a place with lots of information, tools, support, and folks that "get it".
Take Care,
Panda39