Y'all. I am very conflicted. My Dad has dementia. Part of that loveliness is extreme narcissism and just kind of being an ass. My BPD Mom and I are caregivers for him. She most of the day is in waif mode and is even trying to be my friend. Every now and then the nastiness comes out, but only toward me. Then it's back to waif mode. She also thinks she is cured because she goes to therapy with a therapist that enables her and doesn't see through her facade.

I am tempted to let my guard down a little bit because we are forced to live in the same house and therefore I feel like I need to be at least civil. Her behavior just seems fake though. She is acting nice most of the time and tries to make conversation by telling us what she is doing or what she did. She has no friends (no surprise there) so she wants me to be that. Should I trust her? I have no way of getting out of here anytime soon due to my medical condition. Thank you in advance. Sorry for the long post.