OP, your biggest issue will be with the consular interview (vs CBP). India has a history of misuse/fraud for the K-1, precisely because historically it was much faster, so married people tried to go that route to "be together asap."
As in every aspect of US immigration, we are impacted by the actions of our fellow countrymen who went before us.
Since you can't prove a negative (i.e that you are not married), it could go either way at the interview, IMHO.