So yeah after reading everyone's opinions I thought to express my POV.
I don't think Kriya is at fault, by not disclosing the thing to Rey.
Yeah I am sad and tensed that KriYaansh will again have misunderstandings but what Kriya is doing is quite normal.
We already Kriya telling she will disclose it to Rey once she gets the shoot and everything is finalized.
Honestly I have something which I want to share with many of my friends and I am not sharing just because I don't get a final confirmation. So I don't see Kriya doing anything wrong.
And yeah if Rey gets to know before , it's just Bad Luck.
I won't agree that the MU will be because of Kriya . Can't people wish to give suprise good news to their loved ones??