Best Friends that are broken and can be fix again

There are 2 little girls they promised to each other that their
best friends will never be broken...
one day, the 2 little girls played with their dolls,
they share it but Anna borrowed Farly's doll but what did Anna do? she broke it..
Farly got angry to her.. and many days ago, the 2 little girls was a teenager now. but they did not forgot the day when the 2 of them broke their best friends..
and one night Anna was thinking about their promise...
and they said to each other that they're wrong..
Anna said to herself: What did i do??? it's all my fault, there is a word to apologize to her.. but i didn't said it to her oh no!! it's all my fault our best friends broke and our promise broke all is broke that we have and it's all because of me...
and Farly said to herself: oh no!! it's my fault, why i didn't wait Anna to say sorry what she did at my doll!!
then the day after they realized that both of them have faults.
and they realized that their best friends and promise can be fix and then that night the 2 got seen each other, well that's their chance to say sorry each other and that's the best friends