He surprisingly has not instinct for spotting people who do not mean well.
First his parent and now Abhay Banna. :-D
Even Ratan felt there is something off with Abhay and Arpita (what he chose to do with that information is a different matter altogther), but Yash Banna to Yash Banna hai!
He has his blindfolds. He is more sure about Abhay's love that Abhay or Diya is. He seems to be smitten with that "12 saal ka intezaar" narrative. Poor thing. I really am feeling bad for him.
Diya is super bad-ass and can handle even worse situation than this.