Be HONEST. But that's not all!
I was honest in my interview with Cornell (having no reason to tell the otherwise; Johnson School is truly my top choice). Having been asked which other school I was applying to, I told them frankly I was applying to Cornell Program in Real Estate, and planning on applying to NYU School of Continuing and Professional Studies, also in Real Estate. (I ended up my applications with Cornell Johnson School and Program in Real Estate, and let go the NYU application, I was exhausted with applications). So I was totally with Cornell. That went fine and I got admitted to Johnson School with a fellowship.
Three days ago I was admitted to the Program in Real Estate with some awards, and the Director advised me to participate in the Dual Degree, which I knew from the beginning but did not really care about, given my finance shortage, especially when I wasn't sure about admission and/or financial aids in anywhere.
Now the situation holds that I can get an MBA and an MPS (Master of Professional Studies) from the three-year Dual Degree, with the sum of all fellowships, awards and GTRS to help financing the program. I was excited with the newly-found opportunity. I emailed to both schools asking about the procedure of enrollment for Dual Degree...
And Johnson School immediately responded with a heavy email, questioning if I mislead them in the interview, indicating nothing about my intention for the Dual Degree, and that if I really intended for the dual degree, I should have indicated from the beginning in my application, not until now when all the finance schedule was made for me, that the dual degree will start from May with the Accelerated MBA instead of general MBA... I was shocked for the whole day, upon receiving their email.
It was my misconception about the dual degree, and perhaps my expressions in emails that caused the whole mess. I am trying to explain clearly to them how the idea of Dual Degree suddenly popped up, not my intention, and I never tried to mislead them with any information.

I emailed them already with all evidence of application timing to both programs. I am going to make a phone call to them, to confirm all information in the email, and to answer any other question they may have. Hope this helps.
How such wonderful things turn out to be so bad?