YOU SAID:

I know it may come as a shock to you but, she won't last forever, you know.

INTO JAPANESE

ショックかもしれないけど、彼女は永遠には続かないんだよ。

BACK INTO ENGLISH

This may come as a shock, but she won't last forever.

INTO JAPANESE

ショックかもしれませんが、彼女は永遠に続くわけではありません。

BACK INTO ENGLISH

This may come as a shock, but she won't last forever.