I am writing this from a hotel room. I am shaking. We have been married for 3 years. Monogamous. Never even discussed polyamory. We were at her parents' house for the big New Year's dinner. Her dad is a pastor. Her mom is very traditional. We were going around the table sharing resolutions. When it got to my wife, she stood up, grabbed my hand, smiled, and said, "And for us, 2026 is going to be the year we explore ethical non-monogamy and open our marriage! We are so excited to start dating other people!" The table went dead silent. Her dad dropped his fork. Everyone looked at me. I was so in shock I just froze. She squeezed my hand and whispered, "Just go with it.” Later, in the car, she blew up at me for "not supporting her" and said she assumed I’d be cool with it because I "liked that one movie with the throuple." She says she already has a date lined up for next Tuesday. I feel like I'm in a fever dream. WHAT SHOULD DO?