My sexuality vs. You knowing

It's a simple thing, sexuality, it's about who you are attracted to, and it's not that hard to figure out. I recently came out as bisexual, to my big brother... Not really on purpose... It kinda just happened... And I asked him not to dwel on it, 1) because it's unnecessary and 2) because it shouldn't be a big deal, I'm attracted to who I'm attracted to. I'm not the kind of person who keeps secrets, but I also believe that society isn't obligated to know everything about you, if you feel comfortable talking people about specific things, great! But if not, you aren't obligated to "come out" because it shouldn't change how people look at you, or treat you, and it's really only you and your partners buisness anyways. But that's just my opinion.