YOU SAID:
I am in love with my childhood friends jack
INTO JAPANESE
私は私の幼なじみジャックと恋に落ちている
BACK INTO ENGLISH
I'm in love with my childhood friend Jack
INTO JAPANESE
幼なじみのジャックに恋してる
BACK INTO ENGLISH
I'm in love with my childhood friend Jack.
INTO JAPANESE
私は幼なじみのジャックに恋をしています。
BACK INTO ENGLISH
I'm in love with my childhood friend Jack.
That didn't even make that much sense in English.