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she was making the decisions for both of them without consulting him first
Yes, she was making a decision about a week's vacation for both of them without consulting him first, but Clark has been making bigger decisions for both of them - for her - without consulting her first. Remember that he once broke up with her for her own good, and now he has decided to divorce her for her own good.

I know which of them I think is making the biggest decisions for both of them without consulting the other person first.

Ann