YOU SAID:

I'd be pretty sad if those around me did

INTO JAPANESE

周りの人がそうしたらとても悲しいだろう

BACK INTO ENGLISH

It would be very sad if people around me did that.

INTO JAPANESE

周りの人がそんなことをしたらとても悲しいです。

BACK INTO ENGLISH

I would be very sad if someone around me did that.

INTO JAPANESE

もし私の周りの誰かがそんなことをしたら、とても悲しいでしょう。

BACK INTO ENGLISH

I would be very sad if someone close to me did that.

INTO JAPANESE

もし私の身近な人がそんなことをしたら、とても悲しいでしょう。

BACK INTO ENGLISH

I would be very sad if someone close to me did that.