YOU SAID:

you're my one and only.

INTO JAPANESE

あなたは私の唯一の人です。

BACK INTO ENGLISH

You're the only one I have.

INTO JAPANESE

お前しかいない

BACK INTO ENGLISH

You're the only one.

INTO JAPANESE

そう言ってくれるのは君だけだ

BACK INTO ENGLISH

You're the only one.