Feeling guilty after a disagreement about halal food on a family trip

Assalamualaikum. I’m in an awkward spot and would appreciate some advice. For context, I live in a non-Muslim country. I’m on a trip with my uncle and his family to a coastal town. My uncle is generally kind and generous but not practicing - he drinks and doesn’t pray. My aunt and I are practicing Muslims. Halal options are limited here, so we’d planned to stick to seafood. Today we intended to eat at a particular restaurant, but later learned they also serve pork and other non-halal meat. I felt uncomfortable because of possible cross-contamination - same grills, pans, oil, etc. I didn’t want to make a scene, so I quietly suggested to my aunt that maybe we should pick somewhere else. She mentioned it to my uncle. We were already running late, everyone was hungry, and my uncle had chosen that place. He gets hangry sometimes. When my aunt explained, he said we were being too strict and that it wouldn’t matter since we wouldn’t order pork, and that worrying about it was silly. That turned into a small argument between them, and now they’re not speaking properly. It’s only the first day and the atmosphere is tense. I can’t stop feeling like this happened because of me, even though I never meant to cause trouble. I’m unsure what I could have done differently or how to fix things now. Any thoughts on how to calm the situation and respect everyone’s feelings would help. JazakAllah khair.