Also,if Romil wanted to sacrifice for Somi, he should had said it infornt of Dipika and Srisht. But, he made the excuse of not arguing, but that promise was for Romil no arguing for himself.If he wanted to talk on Somi's behalf, then that promise would had not been valid.
Romil did nto give those two an opportunity to see their video and did not see himself.That would make anyone frustrated, but still Dipika and Srishty were mature enough to handle that situation without feeling angry.
Somi already got an opportunity and she voluntarily sacrificed for Jasleen, but Dipika and Srishty were unaware of Romil's intention, he even sacrificed their opportunity along with his.