Honestly, it was good your grandpa died. He seemed like he was suffering, and the only way to stop it was to let go. That was the story of my grandpa. When he died, I said thank you to superior being or have you because my grandpa was suffering. He didn't know his name, he didn't know me, he didn't know anything other than things before 1980. He remembered his bakery, talked about it all of the time. He was a good man, but my dad cared for him so much he wanted to get the nurses to stop his heart peacefully.
I am glad he died, he was in pain.
My condolences to you.