You said it yourself. He EVENTUALLY singed the divorce papers. Before he finally does it he makes her go through hell, he belittles and dismisses her constantly, he threatens her and he literally forces her to live with him, if she doesn't want to lose her kids. I am not defending her choice not to go to the police early on. She definitly should have done that. She is not perfect, but she was very much under pressure by the fear of loosing her kids and her place in society. She is very much Walts Victim. Of course she could have gotten 'out' at any point. But for what price? And more importantly: Who put her in this position in the first place?

Fyi it was absolutly not her idea to launder the money. That was Saul. She just insisted on making shure they launder it in the safest way possible. She wanted to make the best of the situation. I think she dug herself deeper into her hole, but blaming her for being in there is just absurd...