"The skirmish started in a nightclub on the fifth floor of the Carnival Magic ship at around 2 a.m. after the angry lovers confronted their respective partners for two-timing on the seven seas, according to James, a travel agent who watched the fracas from her room.
The brawlers then began shoving each other and smashing beer bottles, and a woman may have been sliced during the melee, which quickly spiraled out of control, James said.
“Ignorant fools acting stupid,” she said.
The dust-up lasted roughly an hour and spilled into the casino area on the same level of the ship, she said."
https://nypost.com/2022/06/30/carnival-cruise-brawl-caught-on-camera-broke-out-over-alleged-cheating-passenger-says/