Of course, she immediately ran to my parents, and now they’re all over me too. My mom keeps saying, “It’s not about her, it’s about your niece,” and that I’m being heartless. My dad told me I’m acting “cold” and “vindictive.” They’re both making me feel like absolute garbage, and honestly, maybe they’re right. It’s not my niece’s fault her parents are struggling. But it’s not my fault either. And honestly, if I cave now, I know my sister is just gonna think she can treat me however she...