I stayed home to play video games instead of visiting my grandmother in the hospital.
Wow I can't believe you would do that! Is she ok?
No, I don't care about her.
I know it can be difficult to see family members in the hospital, but you need to give that priority over your own enjoyment. Ignoring your grandma so you can have fun is going to make your grandma sad and you will certainly regret your actions in the future. You need to prioritize your relationships over physical things.
It's fine. She will get over it. If she loves me so much, she should come home to play video games with me.
What would you do if she god forbid died in the hospital and you had to live with knowing you chose to play videogames. She won't live forever, I think you should try to spend as much time as you can with her, you could even bring a Nintendo switch to the hospital to play games with her.