I know she is not my true friend already since today

she is not deceiving me...not even betraying...i'm very dissapointing with what her have done to me...I have been kept asking myself whether shall I get furious at her actions to me?...but i can't ever control my emotion ....I can't calm myself down...I have bristled with rage...I know I shall not speaks somebody ill at the back of him or her...but she really made me angry...she has started to wear out her welcome n if i don't tell somebody,I think I will be crazy...At the same moment,I know that she is not my true friends anymore......anything will be spoilt by money.........