I'm going to be 100% honest with you (because I happen to lie to everyone else LOL), when a woman has a hysterectomy, a lot of changes happen. She is going to appear to be a different woman, heck most of the changes you've seen in the last several years or so may be related to the problems she had associated with having to have a hysterectomy at such a young age. Post op, she may be required to go on HRT, hormone replacement therapy. I saw my own MIL go through this, she actually changed into a different person - the hormones in our body literally control who we are, she went from being an angry lion to a sweet pussy cat in between taking her regiment of pills to balance her hormones. This may be a bit of generalization and if there are some medical experts out there that want to add to this please do but I know what I saw and experienced, that type of operation changes a woman's life.
Let her serve the papers to you.
Just because she wants the world doesn't mean you have to give it to her.
Not being financially where you need to be (unless of course you are living on the streets because you have a gambling, drinking or drug problem) isn't something that is totally your fault - how did she help to contribute to where you need to be? Why is it all your fault? Why are you taking 100% responsibility of this issue as your fault, don't, you don't have to.
And I love the part about a WAW that says that divorcing is being done with the children's best interests in mind. Speak to those kids and ask them, is this what you want? I remember watching a program on the aftermath of divorce and the effect on children and full grown adults whose parents divorced when they were younger (ie. children, pre-teen, teen, etc.) still feel the effects of that decision, still wished their parents had stayed together, etc.
Divorcing is never done to make life easier for the children (unless this is a family where abuse is commonplace), that's a flat out lie.