Friends

I have several really good friends, some across the country, some close by. I also have siblings.
So, when something important happens in my life and I share it with some friends and my siblings, how come the friends come to support me and my sibling blows me off? It's really quite hurtful and very disappointing.
Therefore, I will continue to stay with my friends, some have been in my circle for close to forty years, gather new one as often as I can and enjoy my life, with siblings on the periphery only.
Clearly I must downgrade my expectations of my sister so when I get little I won't be disappointed.
Did I mention that I really like my friends?