The subordinate clause is "when you go outside."
A subordinate clause contains a verb and a subject. Also, this type of clause doesn't form a complete sentence.
The subordinate conjunction is when, the subject is you, and the verb is go.
Answer:
It was clear from the narrative that the two sisters did not get along very well. Maggie's lack of enthusiasm for her sister's return home suggests that the two do not have a particularly strong relationship, despite the fact that they have been separated for a long time. One possible explanation for the deterioration of ties is the widening gulf in worldview and cultural norms between them. Maggie is more traditional and attached to her homeland and culture than her progressive sister Dee. Even her younger sister, who hadn't done as well as she had, would be looked down upon with disdain. This is really eloquent on the subject of history and cultural distinctions. It seems like Dee was already so impacted by her partner's ancestry that she had forgotten the purity and elegance of her own.
Explanation:
This is my take on the story, so feel free to alter it to fit your own perspective.