i am mad with Kristen!

Why , today during reccess i asked Kristen to let me eat her MarshMallows but she said`No."
So from after reccess till now i am still not talking to her .... Just a MarshMallow ... and she wont give it to me . From now onwards she is NOT one of my close BFF alrdy . But unless she will stop being selfish. And now , she talks to me in a different voice when i call her. OMG she changed......:(
~Cris