I spend a ridiculous amount of time online, I don't like to go to "drunken parties" or anything like that, and my bf and I will have been together for three years in about two weeks. There're people in my f-list who're in fandom and who RP and are up to date with their favorite fandom things and they're married and even have kids. And just in this post, a lot of people mentioned that they also had SO which they could share their hobbies with.

A relationship shouldn't necessarily mean you'll have to sacrifice what you like to do in order to do whatever your SO wants to (like going to a party or clubs or whatever).

Then again, it's no one's business but yours if you are or aren't dating someone. If you're not interested, that's perfectly fine, and no one should be questioning it. Specially if they're your friends.