I think I somewhat understand Isha's need to hide the relationship...from all because in truth she doesn't know where it's heading. I also feel she's uncomfortable in the situation but yet charmed by Ashish so she can't help herself. I like the Ashish angle because it draws Rohan's feeling to the forefront. Other than that I can tell that Isha is not very comfortable with Ashish even though she enjoys the attention. She visibly distances herself which she's never had to do with Rohan. She's never pushed Rohan away from her physical space (I'm not talking about today's pushing away from the kiss) or when he touches her, but she shirks away from Ashish's touch. I don't know if this is due to office surroundings but it seems that Isha is very conscious. It reminds me of Husna's case when she was in between two boys. Isha is comfortable with Rohan. She is herself.
Today's episode about the bad men with Venkat and Sunil...seemed to foreshadow that good men can be bad...Maybe like Ruchika said all men are the same. Just some are more forefront with their intentions and inherently seem bad...Rohan. While other hide their true intentions and seem decent and charming...Ashish. Today's Ashish sent warning bells all over for me...because his flirtation and then invitation to dinner seems like he's piqued by Isha's aloofness but once he figures her out and has his opportunity he's going to lose interest and leave Isha in the dust.
I think Isha and Rohan's relationship draws meaning from each of their cases and I think eventually we might see a climax that's closer to somewhat what we saw of Roshan looking for Shraddha...not exactly but in that sense...
As for Isha and her feeling for Rohan, I think they were always there, but as long as Rohan doesn't take a serious route...Isha won't be able to either...because he's always puts up that devil-may care non chalance as a barrier between them...
Needless to say every episode brings me to the edge of my seat and it's a painful cliff that makes you wait a week before you can see further developments...but it does look hopeful for Isha and Rohan...*figners crossed*