Hey Dogisgood,
It does sound like a lot what you're going through. A bit of quicksand followed by some roller coaster and then into the deep end

Being told she doesn't want to be married to you -- that has to be tough to hear. Has she done this most of the marriage?
She seems quite fused to you so maybe the sentiment is how she registers a 10 on the mad scale.
It's pretty common to try and figure out what triggered a mood, although it sounds like you also know these things can come out of left field, and quickly, for no reason.
Whether she's BPD or not, her behaviors sound like they cause a lot of marital pain and stress. I'm really sorry you've been working through this alone. It's a lot to go through without feeling there's someone out there who understands.
Most of us came to these boards based on the behaviors so you're in good company here.
Glad you decided to pull up a chair
