I DON'T GET IT

I cant believe you did this to me
I looked up to you
I relay wanted you to love me the way you love her
I see you and her and it tares me a part
When i look in the Meir i can't see what you don't like
I try to be like her
But i can't
She is week i am Strong
But you chose her over me
It's not fair
I'm blood
she is only a step
I don't get why you chose her over me
I don't see why
but the chose was yours
I Hope you're glad
In the future i will under stand why
you chose to love here and hate me
But for now i will just wonderer why