YOU SAID:

You (Boyfriend) are trying to date Girlfriend, but her dad (Daddy Dearest) won't let you.

INTO JAPANESE

あなた（ボーイフレンド）はガールフレンドとデートしようとしていますが、彼女のお父さん（パパの最愛の人）はあなたを許しません。

BACK INTO ENGLISH

You (boyfriend) are trying to date your girlfriend, but her dad (daddy's darling) won't forgive you.

INTO JAPANESE

あなた（彼氏）はあなたのガールフレンドとデートしようとしていますが、彼女のお父さん（パパの最愛の人）はあなたを許しません。

BACK INTO ENGLISH

You (boyfriend) are trying to date your girlfriend, but her dad (daddy's darling) won't forgive you.