A long long time ago...someone (MT or Raaga I think) wrote about how Bani suffers from Martyrs' syndrome...
Well, to an extent what happened in today's episode is also a part of that...
IF (and that is a big If) Bani is really the one who has sent the divorce and alimony papers, this is for Pushkar/Pia only...
Once again Bani is sacrificing her love/life for her sister's welfare...
Having said that - What does she think will now happen to Rano, who has to live in Walia house for ever????