YOU SAID:
i am going to confess to him on february first
INTO JAPANESE
私は2月1日に彼に告白するつもりです
BACK INTO ENGLISH
I am going to confess him to him on February 1
INTO JAPANESE
私は2月1日に彼を彼に告白するつもりです
BACK INTO ENGLISH
I am going to confess him to him on February 1
That didn't even make that much sense in English.