If she really marries now at the peak of popularity then her popularity will definitely go down the drains! It is vice versa for Sharad Malhotra as well. The popularity that they have attained to the extent that the audience and fans all over the world could not bear to have SV killed is because of the chemistry they created on screen and people just like to see the two of them together be it on screen, videos, or photos that are projected on this forum or elsewhere! So marriage to any other guy for D or any other girl for SM is honestly going to affect their popularity!!
Both SD have made the love story of Sagar and Vidya a legend to be remembered by many in the years to come!