It has been a while since I watched the show, but if I recall correctly, she wanted to leave initially; then, she decided that it would be bad for the family if Walter got caught, so she stayed to help him launder money 🤷 It seems to me, she was ready to split and even cheated to force Walter to let her go.

I am not a lawyer, but I suspect that the more she was getting involved, the worse it was getting for her and for the family - she had two kids for goodness’ sake! So whatever legal reason they brought in the show made little sense to me.