I imagine that was hard for you to be tough with her. She will now get to see the true consequences of her actions. She can pick up extra time at work if she has to. With her job and the maintenance for the kids, she will be fine. Careful of her guilting you into more. Anything the kids need, fine, but she wanted this. And now the kids know they won't be uprooted, so that's good for them that you are letting her have the house.
I know in spite of how you sound, it's so very sad for you, DC, because you have really worked hard to get where you are now. But, the final chapter has not been written. There have been so many who have reconciled after D. It can happen in your situation, too. Your W may still be angry because getting what she thought she wanted isn't bringing her the happiness she thought it would. Now, though, you two can be co-parents, and learn to be friends, again. And perhaps build on that.
Just know, DC, you have done your best. Keep on doing all you can for your kids and yourself. Your W is seeing that you are making things better for you. Keep going to those meetings. Has your L said what happens next and how long it will take? It seems to be kind of fast over there.