YOU SAID:
how does she know that you love her?
INTO JAPANESE
彼女はあなたが彼女を愛していることをどうやって知っていますか?
BACK INTO ENGLISH
How does she know that you love her?
INTO JAPANESE
彼女はあなたが彼女を愛していることをどうやって知っていますか?
BACK INTO ENGLISH
How does she know that you love her?
That didn't even make that much sense in English.