Deepika you're crazy.
I like that song. Please don't ruin it with Yash's name.
As for why will Zoya fall for Adi is very difficult to speculate.
She needs to stop seeing Yash everywhere and needs to have more memories with Adi. She needs to understand what went wrong in her beautiful marriage that Yash felt like cheating on her (if he did)
And I know that this will take atleast a few months in the show not episodes. She is a recent widow. A widow who still blindly believes her husband is not wrong.
And Mahi needs to get out of Zosh. There will be misunderstandings galore if this persists. I might have to quit the show if unnecessary misunderstandings pile up which can be sorted out with one communication.