I feel Ovi really loved Arjun...She knew arjun loved purvi and she was angry and crying over it day and night and had sort of accepted the situation...except when Punni came along and told her how purvi is a money minded woman and she doesnt care about arjun...that is when Ovi got influenced into the idea of emotional blackmailing archu and purvi to get arjun...but if you see...Ovi did this not to get back her love at any cost but to get back her love from a girl who she thinks is not really in love with arjun...she tried to save him...So technically ovi is not wrong at all..or selfish at all...
It is purvi who is selfish,...who after demanding so many sacrifices from arjun...finally told him give me up and marry my sister...after all that he has gone through...what kind of love is purvi;s? She has only taken from him not given him anything...She will not leave her aai...but she took away everything from arjun...aisa hi tha..toh why get involved with him after finding out about ovi and his prior engagement...should have left it at that...but she wanted the love also..finally..she wanted her aais happiness also...put a thinking brain over your head madame...things dont happen like that...
Also, Arjun is the culprit in a way that he never maintained any friendship with ovi after ditching her...he never sat down with her n explained nicely...for 4 months ka love...he abandoned a childhood friend...when she comitted suicide also..he nver took any concern for her...toh then karma will come bite your ass now...so now deal wihth your loss of love also...
Only thing is...now everyones lives are screwed up! Noone is going to be happy...and we have to see this rubbish track go on and on and on and on...forever until some miracle sensibitily develops in the CV;s and they somehow show that arjun NEVER married OVI. it was all some plan and shit...I REALLY HOPE they make sense this time...after archana-manavs nonsensical drama before the leap...i donlt have hopes...but lets see