Whether or not your WS did a reasonably good job of telling the kids, making a unilateral decision to tell them definitely represents an attempt to be in control of the narrative. The fact that you happened to be there and join the conversation aside, she didn’t invite you to plan the revelation together, decide together on what was appropriate or necessary for them to know, or have input on the correct time and place. She is still not respecting your rights, feelings and thoughts as equally valid and important as her own. This is one of the ways that waywards allow themselves to make catastrophic decisions for everyone around them—they prioritize their own needs, wants, thoughts, and judgement above literally EVERYONE else’s. She should not be trusting of her own bad judgement at the moment, and you certainly shouldn’t be.
You probably won’t be shocked to learn that most of us have experienced the common wayward trait of not being big on thinking before acting. But this makes them completely unsafe to everyone around them who tries or needs to be able to depend on them being safe people. So however you feel about her as a mom to your kids, you should definitely be alert and protective of them. Yes, from their mom. She has clearly and consistently taken action that would obviously be harmful to them, their family unit, their relationships, and their place in their community. She is their mom. It simply isn’t enough to say that she wasn’t thinking about their welfare or the consequences to them for, how many years?. Thinking about your children’s welfare and putting it above your own is literally the job description of being a good parent.
You are also not anywhere near the first of us to receive the mindfucking news that the person who has literally betrayed everything sacred to you, has disrespected and disregarded you as a spouse, friend and human being, and has fed your happiness and well-being to her AP, is still capable of feeling that YOU are betraying THEM by telling others of their behavior. You aren’t responsible for keeping her dirty secrets or protecting her or her reputation anymore. You were fired from that job long ago when she decided to violate every commitment she made to you and her family.
Please don’t let yourself get sucked into guilt over this. And please understand that right now, your WS is not operating under anything ethical or moral code of behavior where you or your children are concerned. Of course she loves her children, but that hasn’t stopped her from betraying them for years and feeling pretty okay with it. A person who can do that has very broken inner guidelines and standards for her own behavior. You can feel compassion for a person who is smacked in the forehead with the consequences of their behavior without falling into trying to mitigate and soften the blow of those consequences. As with anyone else, consequences are often what teach us what is not worth risking.
You and your children should be your primary focus right now. As difficult as it may be, you should probably not focus on her, her feelings, her difficulties, or her consequences. Keeping your balance in all of this is really hard. Many of us were over focused on our spouse’s feelings and well-being over our own before betrayal and it can be a hard habit to break. You have been traumatized and your kids likely are more so that they are currently manifesting. It’s critical that you keep your focus on the wounded right now and let her deal with her own shit. Because she HAS to learn to do that for her own growth, and because YOU really need to focus on your own trauma and healing. As strange as it may sound, focusing on her and obsessing about what she’s thinking, doing, experiencing, etc. can be an unhealthy and unproductive way for a betrayed to avoid dealing with their own pain.
You’re doing well, all things considered, and moving forward which is the only direction to go after betrayal. Your war council is absolutely brilliant. Depend on them and listen to their experience, even when you ultimately can’t take all of their advice. Having their support in real life is a huge benefit going forward.
This sucks completely. There is no upside except that you finally have more of the truth of your own life to move forward with, but we all know that that truth is horrifying and devastating. Take care of yourself. Take care of your kids. Keeping moving through.