Sid ruined it by getting Riddhima angry but he can always make her happy again. They showed Riddhima lying down and Sid all depressed looking sitting on the bedside. It would be cute if he turns around and whispers I love you into her ear, not because he wants to consummate but because he genuinely feels bad about making her upset and wants to see her happy again. So as he says those 3 words, we see her angry frown turn into a sweet smile. Riddhima becomes Siddhantified and BANG... C-night comes!! 😃