Use that too your advantage. =P.
When you get to school be like..
"Hey, you don't want to talk to me anymore"
Unless she doesn't, she will be like:
"I do? or something saying she does"
You say:
"Oh, you ignored my message last night on FB soo.."
She will apologize or give an explaination.
You say:
"It's all good." Basically, you accept it.
By doing this, you are showing her that your understanding..
I mean with my females I would just cuss them out but hey..I pull 2many hoes to care about 1 anyway