I feel this will help in making the confession more passionate and we will get some great SiNal moments.
1. Siddhi accidentally reads kunal's diary. Lat few pages would have kunal's secret confessions penned down. We get some nice poetry and then siddhi quotes these lines in her nok jhok with Kunal.
2. Ishani and her sister ask Chachu to continue with his story from the diary. What happens after "rajkumar marries the pari" and "what happened to the rajkumari". Siddhi over hears them.
Maybe be joins in and says rajkumari chudail mein badal gayi.
3. Siddhi tells Kunal that she heard him saying "i love u" when she walked in on Richa and him that night after the party. So according to her richa was getting what shehad planned but what happened after that and what did he do or say to get Richa so angry.