I hate this stupid family

I would have graduated tomorrow and instead of graduation my school is holding a parade of graduates, 100% social distancing and no one is getting out of their car. My grandparents are in town to watch me “graduate”. For some background I haven’t talked to my dad or had any relationship with him for two years because he’s abusive. My grandpa is the one I’ve been trying to make plans with to see after the parade because my grandma doesn’t have a cell phone and because he is very controlling of her and needs to be the one to do everything. I don’t care about seeing him honestly, he’s a bad person I just want to see my grandma even if it’s from six feet away and only for a few minutes. Tonight my grandpa called me asking if I’m going to my stepsisters grad dinner and I’m just so hurt because I know stepfamily is family too but I’m their granddaughter and they’re down here to see me graduate and he doesn’t even want to visit with me unless I go to a dinner with my abusive dad. In two years I have seen my grandparents twice because every time they’re in town he is so resistant to making any kind of effort to see me and I know it’s because he’s heard my dads side of why we stopped talking and not mine and he just doesn’t want to see me but every time I’m able to get my grandma on the phone she tells me how much she misses me and wants to see me and it’s not her fault he’s like this and I’m not mad at her but my grandfather is just such a fucking asshole for keeping us apart like that and it hurts so bad