Stay busy, man! find things to do outside of the home. Don't tell her what, just say you're going out.
Dress better, wear a nice cologne, etc. You don't need to answer to anything she says about where you're going or when you'll be home, especially if you've outlined who has the kids when.
Then find things to do!
Go to Chapters and read a book, find a hobby; anything that keeps you out of the house and her guessing where you are is a good thing.
Go dark!
Basically, you've been fired as a husband, so you don't owe her anything. You can communicate about the kids, but leave it at that. Even then, let her initiate the conversation. respond with short answers, and be confident and sure. Don't wish/wash around. don't be a jerk about it, though. Think of this as a business relationship now.
ex. "Can you pick up ________ for me today?"
"I'd like to, but I already have plans." (notice I didn't say "sorry?")
"what plans?"
"I'm just going out with some friends for a while."
"which friends?"
"friends from work" or "New friends. You don't know them" (don't be specific or anything) "I'll be back later."
"When?"
"You know we didn't really talk about it; we're just going to see what happens. See you later."
She gets to know what you let her. Nothing more. It will most likely piss her off; I know it pissed off my WW, but what you need to remember is that she's being selfish with her time as well!
You're not on her radar at ALL. Make her realize that you have a life, too!
