YOU SAID:
He knows I'm unfaithful and it kills him inside
INTO JAPANESE
彼は私が不誠実であることを知っています。
BACK INTO ENGLISH
He knows I'm unfaithful.
INTO JAPANESE
彼は私が不誠実であることを知っています。
BACK INTO ENGLISH
He knows I'm unfaithful.
That didn't even make that much sense in English.