Best friends/kids at school problem?

Alright i had this happen to me before its one of the hardest things to fix tell them your srry for breaking the trust barrier and that you miss all the good times with them. just try and start a conversation and gradually work to why cant she trust you anymore and ask why you did what you did just tell the truth if she really is your friend and she will understand and try and hug it out =3 im sure things will be fine just like say feelings got the better of you and that your srry for everything that you did just Don't give up on them just try and talk