YOU SAID:

i am in love with my friends boyfriend

INTO JAPANESE

私は友達の彼氏に恋をしています

BACK INTO ENGLISH

I am in love with my friend's boyfriend

INTO JAPANESE

友達の彼氏に恋をしている

BACK INTO ENGLISH

I'm in love with my friend's boyfriend

INTO JAPANESE

友達の彼氏に恋してる

BACK INTO ENGLISH

I'm in love with my friend's boyfriend