Visitor Visa - B2

today i had an interview at karachi consulate and let me describe some observation of VO and my interview are mention below.

First i was observing the VO which was taking an interview that was very fat and he is in hurry i think what i observed and he was asking just 1 or 2 questions before my interview of other candidates.

Question From First candidate : Male Candidate.
VO: Where are you working and name of comapny ?
Candidate : In Habib Bank
VO : For how long ?
Candidate : more than 25 years .
VO : For how long you are planning to stay in US ?
Candidate : for 2 weeks .
Vo. okay i am approving your visa.

and another candidate was a lady he got approved too in 2 questions.

my turn .

VO : hello
ME : Hello
VO : do you know somebody in us ?
ME : no i dont know any body in us . ( he make a strange face expression and look into the system and ask another question ). while i remember i did'nt mention any strange thing on ds-160 form just put hotel address and name in the form and put OTHERS when asking about relationship .
VO : Are you travelling alone ?
ME : yes
VO : Why would you do that ?
ME : Because i am getting vacations from my office in the month of january.
VO : have you live in bahrain ?
ME : Yes , i was there for 1 year on my contractual job to complete my project of network security in saudi aramco on the behalf of my company in bahrain.

VO : Okay.
VO : Are you married ?
ME : Yes
VO : When did you married ?
ME : i was married in 2012 december so 3 year ( my mistake ) . after some 1 minutes i tell him again when he was in next question to asking about my children ( 4 years almost ) .

VO : do u have children and age ?
ME : 3 years and 3 months of girl ( she was born in recently in august 31 )
VO : where will you stay in new york ?
ME : i will stay in the manhattan hotel .
VO : how much was that ?
ME : 60,000 PKR for 6 days .
VO : 6,000 ? ? ? oh 60,000 PKR . Can you show me your confirmation ?
ME : yes i can show you . i gave him booking confirmation and told him that i got this from booking.com on promotion.
VO : oh 59,180 for 5 nights . okay.

Then i write some thing on system and give white paper of standard refusal of 214b and said that sorry you are not qualified for visa.

Now i was thinking what i said to him which was taken to me on refusal ? i am getting handsome salary around 1,80,000 from my sources and having Department Head in my Company.

i saw it on other windows that other VO were asking long details like traditional questions from candidates.

i have travel history of singapore , turkey , uae , bahrain , oman. so should i travel europe too ?

and should i reapply and mention business in my ds-160 form with 2,50,000 PKR income ? actually i am providing consultancy services too apart from my job but i didn't mention that i only mentioned my job and salary only.

need your comments on my mistakes and suggestion on reapply .