(Baldwin County, GA) exactly what can an executor do to a will on behalf of the deceased?

So my grandfather passed away and has an account with a portfolio worth about $3M. When my grandfather wrote his will he allocated a percentage of the assets to his son, my brothers and I and my mom. My grandmother (his wife) is still alive and the funds will not be dispersed until her death.

My uncle (a royal asshole) is the executor because my father died before my grandfather passed.

The other day, my uncle and I got into a huge fight and he said that if I said "another word that I'd regret it". I said "another word" and he has ceased communications with me.

My question is this: can I be written out of a will becaus I got in a fight with my uncle? Or does the will have to be executed as my grandfather willed it?