In DMG each character has a positive side and a negative side...
For some SR fans Armaan is the villain, for AR fans it's Sid and for most it's Shanky and Riddhima...
Cvs haven't devised a character evil enough to take all the burden and blame, leaving a happy ending to the show and the couple...
They don't have a Komolika or a Tapasya... who are hated to the last degree BY ALL..
From a broader perspective either every character is good and bad, right and wrong, just and unjust...
Personally I hate negativity in shows... But I guess this fact in DMG has become a bane rather than a boon... No one's completely satisfied at the end...