I am setting up a second life with a storage locker for things of mine that I want to keep from being physically destroyed or thrown away. I am back in therapy, which costs money. I am consulting with a lawyer about protecting assets. I am thinking about how I can make sure that she is financially secure no matter what happens (whether I stay or go) and that I am also financially secure. I am trying to train myself to respond to her in a more productive way.
Her BPD continues to dominate my life, whether I am dealing with it or not. It demands everything. I am trying to squeeze my work time out so that I can continue to support us. But BPD demands everything.
I know that she didn't ask for this.
I don't have advice- I have read some of your threads. Posting because, you remind me of my late father. Maybe it will help to know you aren't the only one who has experienced this.
He also hid money from her. I recall in high school, she discovered he didn't tell her about a bonus check he got. She was in a rage about it. Truly all his money went to her needs. If he didn't tell her, it wasn't for himself- it would be so he could pay some bills probably.
When she was in a rage, she destroyed things. Dad sometimes asked me to take some of his things to my house to keep them safe from her.
He did leave her financially secure but her spending got herself into financial problems. A word of advice- if you put funds aside from her- put them in something like a trust or anuity that she can't get to easily if possible- so she gets a montly income rather than being able to spend it all at once.
It was Dad's choice to stay with her- and he must have had his reasons. He did manage to carve out some time for himself- he too walks, went to work before he retired, he'd go out for coffee or lunch to get some quiet time. With cell phones, she could still call him though. Like you, he was concerned about her well being.
I know she didn't choose this. My mother is very mentally ill. I feel sorry for her that this is her situation but nobody can change this for her. I know this was difficult for my father- his decision to stay or leave was his alone and it's yours as well. I do think what you are doing- therapy, protecting your belongings, some of your income, and getting time to yourself are a way of self care- and you have the right to take care of your basic needs-whether or not your wife approves.