The issue between your kids is separate from you and your wife.
You are their father, so are entitled to certain rights and decisions as much as her. Fighting for your kids doesn't mean that you let her do whatever she wants. You do what you feel are right for your kids. Right now she's not putting the kids' welfares first. She's only thinking of herself.
This is why I usually never suggest the LBS to leave the house. All it does is empower the WAS to believe they can do whatever they want.
"But I will also tell you that coded in her actions or things she *very* rarely says, I think she does think about having a separation that might allow for repairing our marriage. "
Mindreading. Don't interpret what she's doing. Just do what you need to do from the idea that you want to do it.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.