Why did patty talk to Sister Parker about the ring in the story summer of my German solider?

Patty talked to Sister Parker about the ring because she wanted advice on what to do with it. Patty was conflicted about keeping the ring that Anton had given her, as it held sentimental value but also symbolized her connection to a German soldier during World War II. Sister Parker helped Patty understand the importance of making decisions that align with her values and conscience.