In Bidaai, the most important thing is everyone is given equal space, every character has developed in his or her own way and very consistently ..Sadhna has been so far sketched as a person with maximum selflessness, but people still had doubts about her signing the divorce paper for Kaushi's operation. For me, even if Kaushi was not sick, her signing of divorce was apt, as there was nothing left in their marriage. She was not ready to give up when she was thrown out and hence had approached Alekh, but Alekh turned her down. It all basically was dependent on Alekh, whether to keep the relationship or not...but being a conjugal relationship, she had equal authority on this marriage...