I can see the whole verbal fight going on here and nope, I'm not supporting either view. I don't share Purvi's view over the entire drama, of course I'm not Ekta's bahu/daughter either. But as a normal person, I guess we have to see where she's coming from - I mean I'm an avid ArVi fan but it's true that sometimes no matter what we're indebted to people. Purvi is an adopted kid and judging from their bond, loves Archana dearly. Believe it or not, she was trying to find some way or the other to repay her; yes, Archana treated her better than someone would treat their own daughter, but in her subconscious, Purvi has always terrified of losing the sole family she has (as seen after the engagment fiasco.). So here's this person and suddenly she gets a way (almost useless if you ask me) to save the relationship Archana cares for the most and lo and behold, she hangs onto it.
So, no, she isn't in any way justified to have sacrificed her love but then don't we all, in real lives (not the virtual ones here, but the one with our real family), say that nothing's bigger than our parents? Therefore, Purvi may be a lot of weird adjectives but she isn't cheap.
Ovi's character on the other hand is just undefined. With the kind of upbringing she had, shouldn't she be headstrong? Let's say love changes it, but then shouldn't her family be bringing her out of the trauma rather than letting it run its course? I mean, yeah, crushes should just run their course, but this was true "love." So yet again, she's not cheap: she just to grow a backbone and visit a psychiatrist.
I lost the entire penchant for this drama a long time ago, just thought I should say what I feel. ArVi were nice now they don't even exist as ArVi!