YOU SAID:
I hate that you ain’t your bestfriend
INTO JAPANESE
私はあなたがあなたの親友ではないことを憎む
BACK INTO ENGLISH
I hate that you are not your best friend
INTO JAPANESE
私はあなたがあなたの親友ではないことを憎む
BACK INTO ENGLISH
I hate that you are not your best friend
That didn't even make that much sense in English.