YOU SAID:
I am in love with the shape of you.
INTO JAPANESE
私はあなたの形に恋をしています。
BACK INTO ENGLISH
I am in love with your shape.
INTO JAPANESE
私はあなたの形が大好きです。
BACK INTO ENGLISH
I love your shape.
INTO JAPANESE
あなたの形が大好きです。
BACK INTO ENGLISH
I love your shape.
That didn't even make that much sense in English.