Welcome Amy25:I'm sorry your mom had BPD. I hear that you care about her. It has to be hard that she appears to being trying to make you feel guilty for you life choices. Healthy adults make their own life choices, to do otherwise would signify a codependency problem.
My parent absolutely hates my personal life choices. She thinks I am choosing who I love just to cause her pain. She says I am doing on purpose to hurt her. She is not able to focus on anything else in life besides that right now. It is extremely difficult to go on living normally when she makes me feel so guilty for it. I wish I could help her. I wish she didn't see everything so black and white
Reading about
FOG - (DEALING WITH FEAR, OBLIGATION AND GUILT), can be helpful for you
My parent with BPD cries constantly. I don't live with her but her husband tells me that she cries constantly about the pain I have caused her. How can I help her?
Is your mom getting any treatment for her BPD.  :)epression commonly accompanies BPD. Could depression be part of the problem? Sometime hormonal issues join in with other problems and make them worse.  :)oes your stepfather try to lay guilt on you as well? I'm thinking he is, because of the reference to "you causing her pain"
It's not a matter of you causing her pain, but of her choice to make herself miserable because she can't make you do what she wants.
SETTING BOUNDARIES will be helpful for you. Boundaries are for your benefit and protection. It is up to you to consistently enforce them.
VALIDATION is one skill you can try with her. Validation isn't about agreeing with someone's opinion or position on something. It is about acknowledging their feelings. What can be more important than Validating is to NOT invalidate.
SET (Support, Empathy and Truth) is a communication skill you might want to try. You let her know that you want to
support her in some way that you feel comfortable with.
Empathy is basically the same as Validation and
Truth is just what it says.
Has something happened recently to make things worse with your mom? How were things with your mom while you were growing up?
I look forward to hearing more of your story.