Hey I word the other 1 wrong so here I'm 14 I want to go out with this girl and she wants to too but she made a promise to her friend that she can't brake cause her friend won't talk to her no more but I don't want to mess up there friendship but I'm in love with her and want to be with her what do I do??

You really can't do anything.
She either needs to have a talk with her friend or
Decide between the two of you
Or
You just wait until one day she is ready