4 teenages in the house and a BPD parent! That could be interesting... .

I have only
considered whether I could move out, but still be together. Whether I could pick up the kids each afternoon from school, do afternoon duties (homework, chatting, playing, cooking dinner), sit down to dinner with ‘the family’, and then about 7pm leave the kids with my wife and go to “my home” to live “my life”, or if BPD partner is in a good mood perhaps staying and socialising until 10pm. On weekends, I’d also be around lots, but still leaving at night.
My therapist said I was dreaming. Living apart sends a clear message that you are NOT together – no matter what your intention. And your BPD will also feel strongly about it (I‘m guessing). But if you are not yet married, maybe you can approach it more like ‘dating”’again.
Interestingly, my BPD partner (married 15 yrs) suggested that I move away for 2 nights/week. She said that was to “give her space” (she feels on edge when I’m around due to past abuse by her father). But when she realised that I liked that idea, and was making plans to enjoy myself (through sport and catching up with my friends) she reneged. I suspect she only suggested it because she though I would hate it…