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.
You've done this before, haven't you.