Is it normal if i like to keep everyone and everything at a distance?

So I learned that I am not comfortable including everyone and everything together at the same time. I like keeping things at a distance including myself. For example, I have a boyfriend but i don't bring him to everything especially with family or friends. I just prefer to keep it at a distance. I know for most that seems shady or odd but it just is what it is. I get anxiety bringing everyone together. Or if my brother invites me somewhere with his friends, it's okay like every once in a while but not too much to the point where they think they know and they know my life, etc. Again, I get anxiety everyone being in my business. So I hate it when people are like "why didn't you bring your bf?" or "why don't you bring your brother?" or "why don't you bring your friend?" It's like ahh I like keeping things at a distance and I think there's nothing wrong with that. i also like having multiple "lives" like this group of friends and that group of friends, etc. They don't have to meet each other. As long as Im not hiding anything which Im not, I think it's healthy and fine. I guess I just don't believe in everyone knowing each other, being in one big setting, etc. I guess it comes down to I'm a private person. Especially like on social media. I barely post anything about my family or my relationship and its all just for privacy reasons like it's no one's business. This hit me recently, especially with my boyfriend. I love him and want to marry him and eventually I have to bring him to family events and all that but then I thought no I don't HAVE to if I don't want to but I do want a big wedding with family and friends but how is that going to happen if I keep everyone at a distance? It kind of sucks and thinking of me at my wedding with anxiety is realistic with everyone there looking at us. Anyways, in general, that's just how I am with friends, boyfriend, and family.