"Is that your fault then?"
Is she focusing on the wrong things? Or is it that she's focusing on things Argine thinks are the wrong things because they aren't the things she thinks her daughter should be doing?
Other options:
no subject
"Is that your fault then?"
Is she focusing on the wrong things? Or is it that she's focusing on things Argine thinks are the wrong things because they aren't the things she thinks her daughter should be doing?