I'm not going to call my grandfather on his birthday
Why wouldn't you call him?
He's has been always harsh and mean to me and he never appreciates anything I do for him.
You don't want to be the bigger person and just be nice? I think you should, but that's on you.
I hate most of my family.
Listen, you have every right not to call him, just don't hold hate in your heart. It's not good for you, ya know?