I've said it before and I'll say it again. I would much rather be you than her. Your future is really looking up. You're working on yourself. Her 3 ring circus is weaving nothing but a web of destruction. When it all implodes, what happens next will depend on where you are at the time and where she's willing to go. If she wants to continue down the path of destruction, I'd bet you're not going to be too interested.
What it's a pity, too, amidst this mess, is your SS21 will pay a mighty big price for this misadventure his Mom is on right now.