While scrolling through a post on f*******:, my hand trembled. A blogger gave a very detailed account of how she caught her husband and his sister having s*x in their bedroom. I'm also quite worried about being disgusted by something like this, because my fiancé has a sister. What I found out soon enough was that he wasn't just lukewarm toward her. He was cold, and on his worst days, he was cruel. I watched him pick up one of her calls with nothing at all on his face. He listened for a long stretch without saying a word, and then he answered in a low, flat voice, "Then go ahead and die." I felt sorry for her in that moment. What I learned later was that the one who deserved pity was me.