There are two male teachers at my high school who are married to each other, but like to screw with the minds of freshmen, the only grade they both teach in.
Every year, they make a game of seeing how many students will think they’re straight men with a bromance going on. They’ll pop in one of the classrooms, loudly saying something ridiculous before going back to their own room. They’ll sometimes bring each other up in class if it relates to what they’re teaching that day - but never say anything beyond ‘my spouse’. They even wear different wedding rings (one silver and one gold) to help cement the 'fact’ that they’re married to different people.
By the end of the year, when the students are all used to seeing 'bromantic’ behavior between them, the teachers then tell them in elaborate ways (like using a pigeon to send a 'love note’ to one of the teachers from the other to read in class). And as soon as the students are let in the joke, they have to sign a 'contract’ saying they’ll never tell anyone in the grades below.
The next year? Do it all over again, with new students.