My younger sister got married before me, and relatives became unbearable. Every conversation somehow turned into questions about when I would marry. A week before her wedding, I seriously considered pretending to be sick.
I went, smiled, danced, and did everything expected of an older sister. At one point she hugged me and whispered, "I couldn't do this without you." I felt ashamed of myself. She had never treated marriage like a competition. Everyone else had put that bitterness in my head, and I almost punished her for it.