YOU SAID:

i am i love with my best friend's ex

INTO JAPANESE

私は私の親友の元元気です

BACK INTO ENGLISH

I'm fine with my best friend

INTO JAPANESE

私は親友と結構です

BACK INTO ENGLISH

I am with a close friend

INTO JAPANESE

私は親しい友人と一緒です

BACK INTO ENGLISH

I am with a close friend