Is OTHER wrong in the post ? POST : Obligatory Mobile apology

So last night my mother was admitted to the hospital because she has an infected joint in her knee. My aunt had bought tickets for the family to go to the symphony tomorrow. My mother has told me to go to the symphony without her as she bought everything for the lunch and everything.

So this morning I called my grandparents to let them know I might need a ride with them due to my mother being in the hospital, my grandmother's response was basically like what do you mean you're going your mom is in the hospital, and I explained that my mom told me to go.

Later I called my dad(mom and dad are seperated) and I said also I was going to the symphony, he said the same thing.

I went into the hospital and told my mom that I didn't think I should go due to her being the hospital and I feel bad going because she is the hospital. She told me that I had to go. So here I am going to the symphony and I feel like a asshole for going so tell me. Am I the Asshole?