YOU SAID:

I miss my ex so much i named a dog after him

INTO JAPANESE

元彼が恋しいので犬に彼の名前をつけました

BACK INTO ENGLISH

I miss my ex-boyfriend so I named my dog after him.

INTO JAPANESE

元カレが恋しいので、犬に彼の名前を付けました。

BACK INTO ENGLISH

I named my dog after him because I miss my ex-boyfriend.

INTO JAPANESE

元カレが恋しいので、犬に彼の名前を付けました。

BACK INTO ENGLISH

I named my dog after him because I miss my ex-boyfriend.