Hi Wilkinson,
Welcome to the BPD Family

I'm sorry for what brings you here, but you have found a group of people that really do "get it" we all have someone with BPD or BPD Traits in our lives.
I'm happy to hear that you have started counseling that is an excellent step. Self-care is super important you can't work on this stuff if your burnt out so that safe place to talk about it is great. Now you have us too
I come at BPD from a slightly different angle than you do the person in my life is my Partner's undiagnosed BPD ex-wife (uBPDxw) so there will be other members that will be better able to give you support/tools that can help you with your relationship with your wife. We have some awesome folks going through very similar things who or who have gone through similar things that are further down the road that can support you where you are.
But as someone who has gone through a divorce and has a partner who has gone through a divorce, I encourage you to speak with a lawyer before packing up and moving out. You need to know how this could potentially affect custody or if you own your own house what moving out would mean in terms of that. I know you aren't saying that you want to divorce but leaving your home could have ramifications later and I'd like to see you protect yourself and your interests before making this kind of decision.
I totally get the exhaustion and desire to just run away from the conflict and drama, I've seen what my Partner's ex can do, and how that can trigger us to react emotionally. It's hard to avoid that knee jerk reaction sometimes but it's important that you protect yourself and your kids.
I'm glad you decided to jump in and know that other members will be along with support, ideas and tools that will be helpful.
Hang in there,
Panda39