Mango ice cream

In the English academy,
Ice cream was delivered when spoke Joy English today.
So I couldn't hear Joy English well.
When the ice cream was delivered, I chose mango ice cream.
My friend Da-yeon also chose mango ice cream.
I ate all the ice cream, but it hurt inside my mouth.
I think it's because I ate Jjujba. (ice cream name)
The teacher said she change Joy English time and teacher.
FINISH!

Ice cream has arrived while I was talking to my Joy English teacher
That's why I couldn't hear my teacher well.
When the ice cream arrived, I chose mango-flavored ice cream.
My friend, who is Da-yeon, chose mango-flavored ice cream as well.
I ate all the ice cream I felt a sudden stingy sensation in my mouth.
I think it's because I ate Jujube.(It's the ice cream's name)
The teacher informed me that she'll change Joy English teacher and time as well