This doesn't make sense to me. If someone is upset about something harmless you like to the point you feel you have to hide it from them then you probably shouldn't associate with them. Just my two sense.

Like I get it if you had a separate account for posting your NSFW content if you do that. But just for different fandoms?

My friends will tease me about liking something they think sucks or whatever but if it's a deal breaker for people that's a sign they're very, very, very immature and not worth hanging around IMO.