Hello specialised,
Well done in setting the boundaries and implementing them.

What you are now experiencing is something called
extinction bursts, which are escalated behaviours from your w, railing against the boundaries in the hope that you will change or discontinue them.
You know what I'm going to say, right, it is super important that you hold fast to the boundaries that have been put in place. Be careful not to negotiate caveats with behavioural conditions attached. Presumably because you are married your assets are joint, so any monies belong to you both?
It is important not to enter into triggering conversations with your w when she is dysregulated, I know you know this, but being calm, neutral, kind and withdrawing will help.
Can you help me understand about the phone password, had something happened around the phone?
My concern with your post is the way your w is escalating her behaviour which has involved a physical attack, albeit minor at the moment. Alcohol and BPD are a very poor mix, alcohol can make dysregulations much worse.
What can you do to protect yourself from your w when she comes home like this, or has been drinking? Do you have somewhere you can go stay if necessary?
And yes your description of good days being better, and bad days being worse is something many of us on here will be able to relate to.
Here is a link on extinction bursts
https://bpdfamily.com/message_board/index.php?topic=111890.0 I was just thinking, hence the edit, that your boundary enforcement, underneath the extinction bursts, it will also be very hard for your wife emotionally and will most likely bring up lots of confusion and fear for her about what all this might mean. It will probably trigger fears of abandonment for her.
When she is not dysregulated and if she brings it up, maybe using SET you can continue to validate how she feels. Being compassionate, strong and steadfast will help hold her emotionally in the long term because you being secure in your boundaries will help her stability too.
There are however no guarantees.
