She is selfish

UGH, i am not in a good mood.
I just came back from church.
She asked me to go home when i'm having bible exam.
I haven't finished.
WHY?
JESUS MEANS EVERYTHING
NOT TUTION NOT TUTION!
She is just being too selfish.
Care about her friend, so she didn't go to church this morning.
WHY?
She needed to take care of her friend.
SEE?
What's the point?
She can bring her friend to church but she didn't.
SELFISH.
This is the word to describes her.
What can i do now?