I think in the precap Raghav could be returning old gifts and other memories from his past relationship to Esha.
His is calm and composed because he has put his ghammnadi self aside and sealing his past like a gentleman.
But I am curious why this track, nowadays its common for human beings to fall in and out of relationship, they are bound to have ex boyfriends and ex girlfriends. Breakup is painful and a period people move on, find someone else get settled, no big deal !
With Mandar track I could understand, he was declared dead, Pallavi got married and the dead husband came back.
I really hope there is more here I still don't see Pallavi a jealous type of woman, she is too naive if she thought Raghav never had a woman in his life. Even if the ex girlfriend came back how can she have doubts after Raghav has endlessly told her he loves her, he has taken care of her when she got injured. For god sake this man was willing to wash her father in laws legs for her.
And didn't she herself told Raghav that she is wife and will not go out of the house at any cost .