YOU SAID:
目がハートになった
INTO JAPANESE
目がハートになった
BACK INTO ENGLISH
My eyes became a heart.
INTO JAPANESE
私の目は心になりました。
BACK INTO ENGLISH
My eyes became my heart.
INTO JAPANESE
私の目は私の心になりました。
BACK INTO ENGLISH
My eyes became my heart.
That didn't even make that much sense in English.