How do I handle being upset at my friends for not reaching out about a post I made?

I posted to my close friends on Instagram about a sibling whom I never met committing suicide 3 years ago at just 19. I just found out today and it hurt me amongst other things in the situation surrounding our father, our mothers, other siblings on my dad’s side and myself. I dealt with a little guilt not making effort to figure out how to reach him being my dad’s oldest. So it feels I’m mourning someone I’ve never met.

I talked about what happened briefly on my close friends story and I thought maybe both of my best friends followed by my close friend would say something to me given it bothered me, but none of them didn’t. They know that I would’ve for them without question. I asked two of them if they saw my story and they replied quickly to our group chat saying yes and asked if I was okay but I never replied. It hurt me that I even had to ask.

How do I handle being upset at my friends for not reaching out about a post I made?
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