Friends always want to know my business but never want me to know theirs. Possible red flag?

I’ve noticed this from a couple friends from both school and the workplace. For example they always seem to wanna be in my business regardless if it’s personal or not. And some things I don’t mind sharing as long as I don’t overshare.

But when I’m generally curious or care about something that my friend (s) could be going through or whatever it is, and I ask about it, I’m almost always told “Nah it’s nothing” “Oh don’t worry about it” but proceeds to tell their other friends who just spills their business without consent.

I’ve always been the quiet friend. Whatever someone tells me stays with me and I don’t run around telling other people my friends business.

I know you don’t have to tell every single friend everything that’s going on with you because I most certainly don’t tell all my friends everything.

But it does make me question certain ones who ask about me or wanna know what’s been going on, but when it’s the other way around they don’t want me to know anything.

Is this a possible red flag? Lately I’ve been more to myself and barely open up now because I feel like the 2 friends who do that are probably just nosey. Or I’m not close enough to them to wanna tell me things like they do with other friends, I don't know.

I feel left out but I’m starting to hate I ever told them anything if they wanna get all secretive when I ask them similar questions
Friends always want to know my business but never want me to know theirs. Possible red flag?
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