During part of a three-week sailing on the Seabourn Ovation, Barry Kluger was exiled to the quarantine floor. The 68-year-old retired public relations executive missed his wife, he said, getting to see her only when she would visit a balcony near his and talk to him through an opening in a wall. Kluger, who was vaccinated, boosted and previously infected, had an asymptomatic case. He spent most of his lonely days online, posting updates about his quarantine on social media. On New Year’s Eve, he wore a tux, ordered champagne and rang in 2022 with his wife over Zoom.