Adjustment of Status - I-485

I just tracked my application and it states that case must be reviewed, i did my interview yesterday and the officer came about my previous F1 visa denial of 9years ago which was 5times denial btw 2009 2010 2011 and 2016. I explained to him i was denied the F1 visa then to come study for my Bsc , which i later studied in my home country and after that i applied for F1 for masters program and i was granted . He went ahead asking my wife if she knew i was denied 5times which she does not know,every other questions and answer was good. he told my wife that he is suspecting me that i married her to get GC which she said NO to him. Then he says he will summit to their boss and a decision will be made.
I just checked this morning and it states case must be reviewed. I'm just worried why he will bring forth my previous F1 denial. My current status is active and im still studying(MSC)
I pray everything goes well