YOU SAID:

I'm in love with three guys and one of them in dating one of thems my ex and the others my best friend

INTO JAPANESE

私は 3 人の男に恋をしており、そのうちの 1 人は私の元彼と付き合っています。

BACK INTO ENGLISH

I have been in love with 3 guys and one of them is dating my ex.

INTO JAPANESE

私は3人の男性と恋をしており、そのうちの1人は私の元と付き合っています.

BACK INTO ENGLISH

I have been in love with three men, one of whom is dating my ex.

INTO JAPANESE

私は3人の男性と恋をしており、そのうちの1人は私の元と付き合っています.

BACK INTO ENGLISH

I have been in love with three men, one of whom is dating my ex.