YOU SAID:

My dad divorced my mom, and then he started dating her, so now he's my step dad.

INTO JAPANESE

私のお父さんは私のお母さんと離婚し、それから彼は彼女と付き合ったので、今や彼は私の義理のお父さんです。

BACK INTO ENGLISH

He is now my dad-in-law because my dad divorced my mom and then he went out with her.

INTO JAPANESE

私のお父さんが私のお母さんと離婚し、それから彼は彼女と一緒に出かけたので、彼は今私の義理のお父さんです。

BACK INTO ENGLISH

He is now my father-in-law because my dad divorced my mom and then he went out with her.

INTO JAPANESE

私のお父さんが私のお母さんと離婚し、それから彼は彼女と一緒に出かけたので、彼は今私の義父です。

BACK INTO ENGLISH

He is now my father-in-law because my dad divorced my mom and then he went out with her.