My (29M) brother (32M) is engaged to his fiancée (30F), and the wedding is in a few months. Everything was well until she mentioned wanting to invite her side of the family. My brother instantly turned it off, claiming it would “ruin the wedding.” She was devastated.

For context, my brother’s fiancée comes from a lower-income household than ours. She is the only one in her family who has attended college and had a great job. My brother has always been obsessed with keeping up appearances, and he refuses to have her parents attend their wedding. I assumed he was just being shallow. But last week, my blood ran cold when I overheard him tell our mother, “I can’t let them ruin our big day, because they’re embarrassing and look like they came from a trailer park.” He even quipped that her father looks like he “crawled out of a Walmart clearance bin.” I felt disgusted.

His fiancée then asked me why he was so opposed bringing her family. I attempted to avoid the subject, but she was very heartbroken and continued pressuring me. I eventually told her the truth. She went silent, thanked me, and then departed.

Everything has exploded. She challenged him, branded him a classist, and is considering cancelling the wedding. My brother is outraged, claiming that I “ruined his life” by intervening. Our parents support him, saying I should have kept my lips shut. I felt she had a right to know, but now I wonder whether I was wrong to inform her.