YOU SAID:
She thought you were hers.
INTO JAPANESE
彼女はあなたが彼女だと思った。
BACK INTO ENGLISH
She thought you were her.
INTO JAPANESE
パパが戻って来たって
BACK INTO ENGLISH
She thought you were her dad.
INTO JAPANESE
パパが戻って来たって
BACK INTO ENGLISH
She thought you were her dad.
That didn't even make that much sense in English.