anyone ever have family treat you like this when you needed them the most?

my identical twin sister died in sept, my brothers refused to go to the funeral and since i didnt want to go alone i just didnt go, i saw it on zoom but it wasnt the same, they never called me after that, only to let me know she died, never got calls saying are you okay?or whatever, they never call unless its a birthday, my parents have been gone for yrs so it aint like i could go with them, then on valentines day i see on facebook my brother got married without telling me or inviting me, so rude, ive felt like disowning them