Hi Salie
20+ years is a long time to be dealing with a difficult stepmother. I am sorry this has influenced the relationship you have with your dad, he unfortunately is spending less and less time with you. You mention how he's become very fearful and anxious when she's in the room and also mention her controlling ways. I want to share something with you from our article about fear, obligation and guilt:
... .fear, obligation or guilt ("FOG" are the transactional dynamics at play between the controller and the person being controlled. Understanding these dynamics are useful to anyone trying to extricate themselves from the controlling behavior by another person and deal with their own compulsions to do things that are uncomfortable, undesirable, burdensome, or self-sacrificing for others.
Do you feel the concept of FOG applies to the dynamics between your dad and stepmother? You can read more here:
Fear, Obligation And Guilt: How We Allow Loved Ones To Control UsYou learned about BPD last week, how did that come about? Were you perhaps actively searching for an explanation for your stepmother's behavior and/or did someone tell you about BPD?
Take care and welcome to bpdfamily
The Board Parrot