YOU SAID:

Mia and Ryan are dating

INTO JAPANESE

ミアとライアンはデートしている

BACK INTO ENGLISH

Mia and Ryan are dating.

INTO JAPANESE

ミアとライアンは付き合っている。

BACK INTO ENGLISH

Mia and Ryan are each other.

INTO JAPANESE

ミアとライアンはお互いです。

BACK INTO ENGLISH

Mia and Ryan are each other.