1. Just after RevAsh marriage when they were left alone in the palace. 
She was all scared and he was nothing but protective and caring. She kept on venting her anger at him and he was slowly falling for her. Especially the scene she takes a knife with her while serving him dinner....that scene was brilliantly conceptualised and shot. I also love the one when Reva dressed Yash's bleeding arm. That was the scene when Yash realised his love.
2. The song 'In lamahon ki daaman me...' on RevAsh. It was the start of Reva's love and trust for Yash.
3. The stormy night in the jungle farmhouse when their eyes spoke volumes. Then Arya came to spoil the fun.


Not much on my list....

Actually I can't remember a single lighthearted RevAsh scene where the love was expressed from both sides. We were begging to the CVs for proper development of the love story, but they kept on showing Reva's hate track, Arya's hate and kidnapping track and in the end Ranima's hate track.
Just wish CVs had taken some clues from Geet!