All of what you said: FEEL nahi aayi thodi si bhi in what was supposed to be a scene where these two forces in Anika's life COMBINE to protect her, a pact that was verbalised today...but hua nahi. Sigh..
It's so ironic, both were equally pained by the mere THOUGHT of her coming to some harm, and while Shivaay could console and Promise Sahil; Sahil believed with a child's faith. His 'pinky promise' with Shivaay was as sacred to Shivaay as any other kasam, it was a responsibility he undertook in that moment, because she, the way she makes promises, means as much to him as some legitimate vow.
And he'd take care of him, for her, till she returns, and he can protect both of them.
It was nice to see, lolz aside, how he was swept away at the mere thought of Anika being harmed, as if he wanted to erase even a mild visual of it.
Sadly, as a child, while Sahil could express his pain, Shivaay could only speak melodramatic talwar waale dialogues.
what potential in the scene.. WHAT potential, and bas.