Thank you both for your comments. I am so very surprised by this recent hurt I am feeling.
I have no plans to contact or restart any relationship. The truth is I am super DUPER fine and happy without any kind of drama or abuse. Imagine that? BUT the good person inside me will always give a second (third, fourth etc) chance because you will always want your Mom to be your Mom. It's always the "What if it's different this time?" kind of moments that catch up with you, right?
I suppose this new surfacing has to do with my recent reach out I gave to my little sister, 17 years old. Our relationship has been non-existent because it just became too hard during the NC years and trying to keep up with the her and to schedule to see her through uBPD mom. I am 36, so our age gap is big. I let her know I love her and think about her, and she responded positively. Which was such a relief because I harbor a lot of guilt for our relationship.
I worry she is going to ask me hard questions on WHY I don't talk to our Mother. I can't tell her in a simple way. I suppose she would probably understand a bit considering I can see her treated as the "black child" of their family.
( I say
their family because of the sisters and my age gap, different Dads etc... .I was an only child until 14, so my role was both being either All good or All bad. If that makes sense)
Anyway, I don't have to tell her anything really, and if we ever do get to that level of conversation, I can answer in baby steps.
but back to the original feelings. This hurts.
I have children of my own, and I am careful not to call anything with the "S" word... .The "S" word in this house is "Stupid"

I can't even imagine being so hateful and nasty and try to tear down my kids... .
Grieving. When will it stop? Just when I think I am good, this stuff will pop up. ugh. Thank again everyone. Venting is good.