That really stinks that your W is behaving in this way, Intact. It really seems as if she either is having trouble looking your S in the eyes because of the decisions she's made, she needs more money to support her new lifestyle, or both. Whatever her reasons, your S is going to need you now more than ever before.
I have a somewhat similar sitch with my W. I've always taken on more of the child-rearing responsibilities so that W could focus more on her career. Now that we're starting to look for separate living arrangements, I'm going to focus more on my work just to keep my head above water, but W still wants to keep the same arrangement. I've made it clear to her that I can't continue to make sacrifices for the benefit of her career if it means I won't be able to support myself as well.
I don't know how she expects us to afford separate residences if we are barely getting by now and if she is reluctant to make concessions to allow me to take on more work, but anytime the subject comes up, she just gets angry and yells. It's a tough subject and I hope you guys can work things out.
M41 W42 M 12 T 15 S10, D9, twin Ds 3 1/2 BD 1/2/2013 Living as roommates Working on D agreement w. mediator 5/13