@Indu you spoke the exact words which has been dancing in my mind since last friday's precap. (Couldn't phrase it in orderly manner though, simply because I was also dancing like crazy this weekend...practising SALSA & WALTZ together!! ππ)
Anyway, am of the same opinion that Yash is afraid to take a leap towards Aarthi simply because he's not sure of her feelings towards her ex-husband.
He's afraid of rejection, should he let his heart loose...he just can't bear another heartbreak!!! It will eat him up alive.
So, Aarthi's confession is very much needed at this point of time in order to give assurance to Yash that she'd indeed moved on & realised that he's the ONLY one for her...NO ONE ELSE!!!
And she'll forever remain as his...he need that kind of assurance from her as well as some external push & I can only think of one person who can give him the push, LAKHAN BHAI!!! π³