I was reading about the relationships between Native Americans and colonists for one of my classes. Even though the two groups had several conflicts among each other, many interracial marriages occurred between them. This is the case of the two people here.
They aren't married, but they love each other. The Native American girl is sad about how her boyfriend's (I suppose) people are abusive to the tribes and how the boyfriend is not doing anything to change that.
"If you truly cared for me, you would help my people!" she accused him.