I've been reading your thread for quite some time. This is my first post to you.
From what I've read, you let your wife walk all over you. I know how it feels because I was in the same situation as you with my husband. I too was being treated as a doormat but I refused to be treated like one now.
When your wife asks for a "favor" ask her if it's regarding the kids, and if it is then ask her what the favor is then give her an answer. If she says it's not about the kids, tell her that you can't do anymore favors for her.
Quote: "I bet you wanna go to lunch with me, huh?" I said flatly, nope. Have field work I gotta do. She persisted, "I know you want to go to lunch with me, huh?" Again, I declined.
Okay, when I read this statement, it told me that wife is so full of herself right now. She thinks she has you wrapped around her little finger. I don't think it's so much as flirting with you (and I hope I'm wrong) but I think she is just pulling your strings (her being the puppet master and you being the puppet). She sees you flirt back, maybe gets a little rush, and then I bet she turns cold. It's almost like a little fix for her...she wants to see if you are still there for her to get a little ego boost.
I've also noticed that when you do stand your ground with your wife she flies off the handle and starts cursing you and calling you every name in the book. She's throwing a tantrum. Walk away, or hang up on her if she does this to you over the phone.
What I've learned and I'm sure you know this too, we can't change others, we can only change ourselves.
Take care
M:43 H:37 D14 (ours) D18 (mine) S22 (mine) S18 (his) S: 10/2004 Bomb: 2/15/05 In/out of home Living with OW #4 Talks of D for 2-1/2 years