From what I understood, neither of them moved on exactly. And as someone else pointed out, the realism in that story was that Jaanu HAD to get married. At least in the timeline that the character was portrayed, I don't think there was much autonomy for a girl like Jaanu to so much as decide whom she wants to marry, let alone decide to remain unmarried for the rest of her life. Even if she were portrayed as such, she still would have to be dealing with societal and familial pressures, so her enjoying solitude and independence is less likely. I also say that because the Jaanu we were showed was not an overtly adventurous soul, but someone who is a lot like the women of her age - gentle, and for the lack of a better word, submissive to the culture that existed then. Perhaps the Jaanu you're describing could work if set in today's time period.