YOU SAID:

you've spoken very handsome all along, put me off my guard

INTO JAPANESE

あなたはずっとハンサムな話をしてきた、私を油断した

BACK INTO ENGLISH

You've been talking handsome, you let me down

INTO JAPANESE

あなたはハンサムな話をしてきた、あなたは私を失望させた

BACK INTO ENGLISH

You've been talking handsome, you let me down