Thank for the tag.
Raghav is not in anything with Isha but for the pain which she gifted him when she dumped him. Now, did she do it for money or the lack of it with Raghav or she had another reason & used this as an easy excuse remains to be seen. Even if she had lied to Raghav it is of no consequence as far as Raghav & Pallavi's relationship is concerned. They have seen so much of each other & experienced so much, if anything Isha dealings will further cement their bond. It will help Raghav heal & have a closure. Therefore no shadows of the past on Raghav & Pallavi's relationship.
If, Isha wants Raghav back as in the case of every serial then of course temporarily Pallavi's insecurities will be kindled but it won't persist because Pallavi knows the depth of Raghav's love for her.
The writing of this track is a bit better. But it remains to be seen how it will proceed. Will conclude only after what I see on my screen.