Beth and Martha and countless others say it all, when they say it is about "them," not us. The WAS is selfish. And you will drive yourself CRAZY trying to figure out what they are thinking or doing or are going to do. You have NO idea.
And yes, I suspect a lot of it has to do with you not giving in to her; something she has probably become familiar with.
She is also angry and you are an easy target for that anger.
Patience, calm and doing what you need to do for you and S5.
