Chapter 3. Let the detachment begin

[SH_]

I can carry all the costs on my own and she can walk off into the sunset. I would not chase her for a dime. That's why the $100 is not really an issue.

This sounds like you answered your own question.

I'm also wondering if it is a 180 on her part. Is she doing something to get a reaction from me? I know I can't believe in what she says but she is upset that since we separated and since she left this household is thriving. Projects are being completed, we are doing fun things, the house is clean and kinda tidy, and no one - D20, S15, S10 is complaining? No one is wishing mom was her to do...

This sounds kind of like mind reading and not really relevant to how you should be making decisions at this point.

So what do you do with a spoiled child or a WW - who is playing games with small amounts of $?

I typically see sandi2's advice for money as you should protect it by splitting accounts and legal means.
I still think you are overly focused on the WW/spoiled child thing.
She left you. Fired you as her husband. It's time to live and make decisions in that manner. Not focus on every little minute interaction.

She can't borrow against the house without my signature. If she applies for credit - it is hers.

So clarify for me here as I know laws differ from place to place. For me here every debt and form of income is community property in a legal marriage. So even if she took out credit and ran up debt while we are married I am on the hook for half when the d goes through. Same if I won the lottery with the ticket I bought. It would be split in half.
Are you saying that debt and income is seperate for you and W when you are in a legal marriage?

No the 35k in leagal fee's would happen when we need to work out a formal D, division of asset, custody arrangement of children etc.