i know my mother believes this idea...i guess it's big with your core audience? but, ugh. here you are building a lovestory with today's day and age characters, and you have to go throw in that old line.
yes, pragya is traditional. still, that scene would've been just as strong if her main reason for not wanting to marry again was not wanting to be unfair to her future husband when she's already given her heart to abhi. she didn't need the additional reason of "marriage happens only once." newsflash - not the case. just look at the supposed tabhi marriage pragya is trying to facilitate.
also, people marry for reasons other than love, so maybe you were covering your bases with that line.
whatever. i didn't like it. šš¼