1. Naina's VO. She was ready with the possible reactions of Sameer after hearing the news on marriage alliance. But she never expected him to appear with a guitar.
2. Expression of Sameer while singing and after proposing Sunaina. While singing he was constantly checking Naina's response. His expression of a charming Romeo turned to complete sad immediately after proposal as if he was forced to do something which he don't like at all.
3. The way how Sameer and Sunaina were having a conversation in class. They were talking seriously and it is not something they were doing purposely to show off in front of Naina. Sameer's eyes were having that dreamy look which he gets whenever he talks about Naina and Sunaina's face was like she lost everything. It was not definitely a romantic talk. Most probably Sameer was explaining his and Naina's love story and why he has to take a step like this.
Why Sameer has to take these kind of extreme measures?
We have seen that even before holidays Sameer and gang had tried all the possible ways to pacify her, by pleading, by talking, by giving flowers and even with Sunaina also. Of all only one time she responded that was when Sunaina was proposing. That too she was not jealous of Sunaina but was feeling bad for her that she will be heartbroken later. What ever it is Naina knows very well that Sameer can't love anyone other that Naina. So now also she is not feeling jealous but feeling sad for Sunaina.
Same like Naina, Sameer also knows very well that Naina can't love anyone else other that him. He knows that she is in a sacrificial mode but he went on complete shock when he saw her like that and came to know that her engagement is over. In the name of liability to family, she is sacrificing her happiness, dreams, studies, love and even her soul also. So to help her come out of this numbness she needs shock and she needs to respond. There is no other way than using Sunaina to achieve it. Then she will start reacting and using that small passage Sameer can enter her mind that she closed purposely and make her realize the situation and help her to stand and fight for herself before her family members kill her permanently.
Right now it looks like only Sunaina knows about it. But slowly one by one Sameer will include Mundit and other gang members also. Like that all of them together they will help Naina to find her fighting spirit and courage back.