YOU SAID:

My friend likes a girl who likes a boy which isn't him.

INTO JAPANESE

私の友人は、彼ではない男の子を好きな女の子が好きです。

BACK INTO ENGLISH

A friend of mine likes girls like boys he is not.

INTO JAPANESE

私の友人には、彼は男の子のような女の子が好きです。

BACK INTO ENGLISH

My friend, he likes girls like boys.

INTO JAPANESE

私の友人、彼は男の子のような女の子が好きです。

BACK INTO ENGLISH

A friend of mine, he likes girls like boys.

INTO JAPANESE

私の友人、彼は男の子のような女の子が好きです。

BACK INTO ENGLISH

A friend of mine, he likes girls like boys.