Ya, I understand, that some people would want to avoid Avantika and Adi, if their daughter would have been rejected in the past by them, but taking revenge is just so sick!
And now, all 'this' forces me to think whether there was really something wrong with their daughter! Or else why would they be so affected by just one rejection! And what they should be doing now, is to try and get their daughter married, instead of plotting and planning against the Kumars!