I went back to my parents' house to visit my father's grave. My brother and his wife live there. My brother is currently on a business trip overseas. Only my sister-in-law and I were at my parents' house. I was thinking about going home because I felt a little awkward, but my sister-in-law said, "I have something I want to talk to you about," so I listened to her. The content was about their marital relationship, and it seems that things haven't been going well between my brother and her recently. As I listened to her, it got late at night, and I ended up staying at my parents' house...