Citizenship

Good evening friends on this forum ,
 
Today I had my interview . The IO
Was nice and professional . It seemed everything went well .
Even he was going to schedule me for Oath ceremony ! As they had
Coming Monday vacant spot for applicants to fill in . Then I said that was good
Not to wait long time for scheduling another day . Alright , then I was told
To be waited till they called my name again in the lobby seat area. He handed out me form 652 showed
Test passed and recommended approval . Ok, then I was sitting to wait for him
Call me again . A few minutes later , he called my name and I went to his office . He told me he need give my
Application to his supervisor to review . Then he took original recommend approval form back but a new form with test passed and “USCIS will send you a written decision about your application”. I was confused and had no clue why ! He just said my application need to be reviewed by his supervisor . I Was emotionally sad . As I have no any bad records , no criminal , no any applied government social welfare , paid my tax , have a stable job . . I submitted all documents I have . I have no idea why my case need to be reviewed by his supervisor !
does anyone have same experience that case application need to be reviewed ?? I absolutely can’t figure out what’s wrong with my application? I cried as I felt so sad ..

But what’s the difference between “ USCIS will send you written decision about your application “and
B part “ a decision can’t yet be made about your application”? I/O ticked I passed test and “ USCIS will
Send you a written decision about your application”. What does it mean? Does mean I will be denied????

Can anyone know that ?? I am so down ... I can emotionally sad and cried a lot today .. it was so tough for every step we experienced for this journey ? Why I was not approved? I/O said he dodn’t Say I was denied . He said my application just need his supervisor review!! Sooooo exhausted mentally ...