Hi there. I've been super busy with work so have not been able to be on here as much.
Your wife is more than likely feeling like she has lost the respect of her son. She told you in her letter how bad she felt about you telling them. How she is reacting to her feelings on this is not the greatest choice and she could probably use someone to tell her that. I like inlikeflynn's way to handle that. I also think that it can't be you and the kids vs. her anymore. Yes, she has made her bed...but..... You know what I'm saying? Maybe there is a little bit of keeping them on your side until you are sure she won't leave you, just as much as she is not letting you have "all of her" until she is sure you won't give up on her. I don't know......just thinking out loud (in writing).....
Things are going well for you and her. That letter you sent her has seemingly made some changes in your wife. She is (hopefully) reading that book and you guys are (hopefully) going to be discussing it soon. Lots of stress and emotions in the household (not to mention PMS). You mentioned coming on here can sometimes get things going more than necessary, so keep that in mind. You are doing well.