I don't think that you should do anything to take yourself away from your kids. No matter what the problems are, they are your kids. Thing is though, I also don't think you should go out of your way to manipulate or beg them to stay whether it would work or not. On the one hand I feel staying involved in their lives is very important and not separating as much as it is in your control but do let them go if they need the space. both things are right. Thing is, if that's their choice, leave the ball in their court and use the situation to make things better going forward. Life is not a static thing and if/when they leave it does not have to mean the end. Use it to work on you and do what you have to to improve your own behavior. it will work out in the end if you do everything you can do do this. Being apart from them can be a good thing - as a person with bpd, finding yourself (at least in my own life) is best done on your own.