Moonbeam77,
Wow. Reading your post, this part really struck me. Can you step back and read it again?
She could agree to my kids spending time with my father and my husband spending time with him but she could not agree to me spending time alone with him.
This really struck me because the financee should not be calling the shots! It is your father! She decides what she can agree to? Your father is really deep into the FOG with this woman if she is the one who decides who gets to spend time with whom. I guess there is nothing you can do about that since your father is allowing it. Very sad situation. Personally, I would stay clear of them. It doesn't seem from your post that you are really, really wanting to spend time with your dad anyway. I would probably go VLC if I were in your shoes! That situation would drive me nuts.
I also found this part of your post interesting:
I feel females in my father's life are triggering for his fiancée. My sister and my sister-in-law have both been accused of cussing the fiancée out. My aunt was accused of bruising the fiancée when my aunt didn't want to be hugged by her during my grandfather's funeral. The fiancée says that I bully her.
Yep. She sure does sound BPD. It really is ALL ABOUT HER, isn't it? Here you are, looking to problem solve your relationship with your dad, and it seems it is more about the fiancee. Crazy. But BPD people have a way of making it all about them!
I'm sorry for your situation.