Arpita Di nick name by Aryan

I watch today’s episode nobody mention the nick name Aru used for Arpita di when Imlie said that they should call Arpita di to open the bedroom door or did I just dream it because Aryan said that Arpita di will come when she is ready and not before also not to highlight it to Arpita di because it is a secret between brother and sister and Aryan should not have used the name. I think Imlie is going to blackmail Aryan for giving the secret out and use it against him when the time is right and help her in some way.

I hope I am making sense otherwise I going crazy because it was so funny and the way Aryan was scary of his big sister. Bravo little brother

I hope I have posted this topic in the right place otherwise a very big sorry and please forgive me.