I finally blew up after our book club's latest fight over book meanings

We were supposed to discuss 'The Silent Patient' and it turned into a mess. One group kept saying the twist was obvious from page one, while others thought it was genius. I tried to share my view, but everyone just yelled their own points. It got so loud my neighbor texted to ask if we were okay. I put real thought into my reading, and for what? Now the vibe is totally off, and two members said they might skip next time. I hate how something fun became so stressful. Can't we just chat about books without it feeling like a battle?