Been there , still there tbh , i had a group of small people with whom i grow up and shit just went like bad to worse in a matter of a few months, can't blame them i kinda ditched them sometimes to be with my gf at the time.
And we slowly stopped talking and seeing each others , our paths took different routs , i still miss them like family,they were my family tbh,and that feeling of rejection that you feel it's normal.
You gotta bounce back on your feet and accept the cold truth.
You still have friends,you still have hope.
Hope you can reconnect with your friends or at least find new valuables ones , it's hard to find good friends.