YOU SAID:
Your girlfriend is cheating on you
INTO JAPANESE
あなたのガールフレンドがあなたを浮気しています
BACK INTO ENGLISH
your girlfriend is cheating on you
INTO JAPANESE
あなたのガールフレンドはあなたを浮気しています
BACK INTO ENGLISH
your girlfriend is cheating on you
You've done this before, haven't you.