My suggestion would be to leave your W alone. Force her to be responsible for her own finances. If you help her....you are enabling her to live this sort of lifestyle. If your children need food, clothing, or anything at all....they can come home. This may not "feel" like it is the right thing to do, but as a WAW, I can tell you that she must experience this.
A tiny bit of threadjacking, but I hope that's OK and maybe there's something in it for everyone. My apologies in advance.
Hi Sandi. This is a very interesting point you are bringing up. My w, who d-filed last June, moved next to her parents, is actually using the "independent survival" thing as a point of pride in wanting a divorce. Showing me and the world that she can make it on her own (shhhh! Her parents are next door to her, making dinners for her 4-5x a week, helping with our 16 month old son 3x daily, yard work, laundry, etc). She is not truly experiencing independence, but feels like she is and her pride gets reinforced daily by her parents.