YOU SAID:

I have a crush one someone and they also have one on me, so now we're dating

INTO JAPANESE

私は誰かに片思いしていて、彼らも私に恋をしているので、今私たちは付き合っています

BACK INTO ENGLISH

I have a crush on someone and they are in love with me too so now we are dating

INTO JAPANESE

私は誰かに恋をしていて、彼らも私に恋をしているので、今私たちは付き合っています

BACK INTO ENGLISH

I'm in love with someone and they're in love with me too so now we're dating

INTO JAPANESE

私は誰かに恋をしていて、彼らも私に恋をしているので、今私たちは付き合っています

BACK INTO ENGLISH

I'm in love with someone and they're in love with me too so now we're dating