Do you tend to get along with your siblings? if not, why?

I have a very close relationship with my brother, we are like best friends and spend a lot of time together. Sometimes though, I have friends telling me that it’s really weird/strange that we get along so well. One time I even had a guy telling me he didn’t approach me because he thought my brother was my boyfriend 😳. My brother is protective of me but given that I’m him only family, it just seems that is too odd to people how good and friendly our relationship is.
Do you tend to get along with your siblings? if not, why?
Do you tend to get along with your siblings? if not, why?
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